55531555374 has 32 divisors (see below), whose sum is σ = 112655924640. Its totient is φ = 18245371392.

The previous prime is 55531555361. The next prime is 55531555433. The reversal of 55531555374 is 47355513555.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665344 + ... + 744140.

It is an arithmetic number, because the mean of its divisors is an integer number (3520497645).

Almost surely, 2^55531555374 is an apocalyptic number.

55531555374 is an abundant number, since it is smaller than the sum of its proper divisors (57124369266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55531555374 is a wasteful number, since it uses less digits than its factorization.

55531555374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80484.

The product of its digits is 3937500, while the sum is 48.

The spelling of 55531555374 in words is "fifty-five billion, five hundred thirty-one million, five hundred fifty-five thousand, three hundred seventy-four".