55352415647 has 4 divisors (see below), whose sum is σ = 55756448016. Its totient is φ = 54948383280.

The previous prime is 55352415611. The next prime is 55352415659. The reversal of 55352415647 is 74651425355.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55352415647 - 2²⁸ = 55083980191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55352415347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202015979 + ... + 202016252.

It is an arithmetic number, because the mean of its divisors is an integer number (13939112004).

Almost surely, 2^55352415647 is an apocalyptic number.

55352415647 is a deficient number, since it is larger than the sum of its proper divisors (404032369).

55352415647 is a wasteful number, since it uses less digits than its factorization.

55352415647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404032368.

The product of its digits is 2520000, while the sum is 47.

The spelling of 55352415647 in words is "fifty-five billion, three hundred fifty-two million, four hundred fifteen thousand, six hundred forty-seven".