55351553131 has 16 divisors (see below), whose sum is σ = 64734033600. Its totient is φ = 46345673088.

The previous prime is 55351553129. The next prime is 55351553137. The reversal of 55351553131 is 13135515355.

It is a cyclic number.

It is not a de Polignac number, because 55351553131 - 2¹ = 55351553129 is a prime.

It is a super-2 number, since 2×55351553131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55351553137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240796 + ... + 410713.

It is an arithmetic number, because the mean of its divisors is an integer number (4045877100).

Almost surely, 2^55351553131 is an apocalyptic number.

55351553131 is a deficient number, since it is larger than the sum of its proper divisors (9382480469).

55351553131 is a wasteful number, since it uses less digits than its factorization.

55351553131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651798.

The product of its digits is 84375, while the sum is 37.

The spelling of 55351553131 in words is "fifty-five billion, three hundred fifty-one million, five hundred fifty-three thousand, one hundred thirty-one".