55147274155 has 16 divisors (see below), whose sum is σ = 66866738400. Its totient is φ = 43658818560.

The previous prime is 55147274129. The next prime is 55147274159.

It is a happy number.

55147274155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55147274155 - 2⁷ = 55147274027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55147274159) 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, 379611 + ... + 504379.

It is an arithmetic number, because the mean of its divisors is an integer number (4179171150).

Almost surely, 2^55147274155 is an apocalyptic number.

55147274155 is a deficient number, since it is larger than the sum of its proper divisors (11719464245).

55147274155 is a wasteful number, since it uses less digits than its factorization.

55147274155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125694.

The product of its digits is 980000, while the sum is 46.

The spelling of 55147274155 in words is "fifty-five billion, one hundred forty-seven million, two hundred seventy-four thousand, one hundred fifty-five".