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52160400551 = 77451485793
BaseRepresentation
bin110000100101000000…
…001000110010100111
311222122010222220001002
4300211000020302213
51323311030304201
635543454223515
73524404042430
oct604500106247
9158563886032
1052160400551
1120137205a56
12a1384b4b9b
134bc3517c4c
14274b620487
15155438d76b
hexc25008ca7

52160400551 has 4 divisors (see below), whose sum is σ = 59611886352. Its totient is φ = 44708914752.

The previous prime is 52160400527. The next prime is 52160400557. The reversal of 52160400551 is 15500406125.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52160400551 - 214 = 52160384167 is a prime.

It is a super-2 number, since 2×521604005512 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52160400557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3725742890 + ... + 3725742903.

It is an arithmetic number, because the mean of its divisors is an integer number (14902971588).

Almost surely, 252160400551 is an apocalyptic number.

52160400551 is a deficient number, since it is larger than the sum of its proper divisors (7451485801).

52160400551 is an equidigital number, since it uses as much as digits as its factorization.

52160400551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7451485800.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 52160400551 its reverse (15500406125), we get a palindrome (67660806676).

The spelling of 52160400551 in words is "fifty-two billion, one hundred sixty million, four hundred thousand, five hundred fifty-one".

Divisors: 1 7 7451485793 52160400551