55440312602 has 32 divisors (see below), whose sum is σ = 88451937792. Its totient is φ = 26003321344.

The previous prime is 55440312581. The next prime is 55440312607. The reversal of 55440312602 is 20621304455.

It is a super-2 number, since 2×55440312602² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55440312607) 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, 8815103 + ... + 8821389.

It is an arithmetic number, because the mean of its divisors is an integer number (2764123056).

Almost surely, 2^55440312602 is an apocalyptic number.

55440312602 is a deficient number, since it is larger than the sum of its proper divisors (33011625190).

55440312602 is a wasteful number, since it uses less digits than its factorization.

55440312602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9982.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 55440312602 in words is "fifty-five billion, four hundred forty million, three hundred twelve thousand, six hundred two".