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55602231231 = 3109931685989
BaseRepresentation
bin110011110010001001…
…101011011110111111
312022112000102000010110
4303302021223132333
51402333132344411
641313204441103
74005606111261
oct636211533677
9168460360113
1055602231231
1121643012318
12a9390a9193
1353215c8951
142996799b31
1516a660a2a6
hexcf226b7bf

55602231231 has 8 divisors (see below), whose sum is σ = 74143096240. Its totient is φ = 37064760192.

The previous prime is 55602231163. The next prime is 55602231233. The reversal of 55602231231 is 13213220655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55602231231 - 226 = 55535122367 is a prime.

It is a super-2 number, since 2×556022312312 (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 (55602231233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810016 + ... + 875973.

It is an arithmetic number, because the mean of its divisors is an integer number (9267887030).

Almost surely, 255602231231 is an apocalyptic number.

55602231231 is a deficient number, since it is larger than the sum of its proper divisors (18540865009).

55602231231 is a wasteful number, since it uses less digits than its factorization.

55602231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696985.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 55602231231 its reverse (13213220655), we get a palindrome (68815451886).

The spelling of 55602231231 in words is "fifty-five billion, six hundred two million, two hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 3 10993 32979 1685989 5057967 18534077077 55602231231