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52915695493 = 73724872541
BaseRepresentation
bin110001010010000001…
…010110111110000101
312001120210012211220211
4301102001112332011
51331332404223433
640150434555421
73552204663463
oct612201267605
9161523184824
1052915695493
1120494592251
12a309438b71
134cb3b4782b
1427bda6d833
15159a8348cd
hexc52056f85

52915695493 has 4 divisors (see below), whose sum is σ = 53640568108. Its totient is φ = 52190822880.

The previous prime is 52915695463. The next prime is 52915695527. The reversal of 52915695493 is 39459651925.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20204632449 + 32711063044 = 142143^2 + 180862^2 .

It is a cyclic number.

It is not a de Polignac number, because 52915695493 - 233 = 44325760901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52915695463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362436198 + ... + 362436343.

It is an arithmetic number, because the mean of its divisors is an integer number (13410142027).

Almost surely, 252915695493 is an apocalyptic number.

It is an amenable number.

52915695493 is a deficient number, since it is larger than the sum of its proper divisors (724872615).

52915695493 is an equidigital number, since it uses as much as digits as its factorization.

52915695493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724872614.

The product of its digits is 13122000, while the sum is 58.

The spelling of 52915695493 in words is "fifty-two billion, nine hundred fifteen million, six hundred ninety-five thousand, four hundred ninety-three".

Divisors: 1 73 724872541 52915695493