55662637975 has 48 divisors (see below), whose sum is σ = 83138567680. Its totient is φ = 36114076800.

The previous prime is 55662637973. The next prime is 55662637981. The reversal of 55662637975 is 57973626655.

It is not a de Polignac number, because 55662637975 - 2¹ = 55662637973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55662637973) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2726305 + ... + 2746645.

Almost surely, 2^55662637975 is an apocalyptic number.

55662637975 is a deficient number, since it is larger than the sum of its proper divisors (27475929705).

55662637975 is a wasteful number, since it uses less digits than its factorization.

55662637975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21200 (or 21195 counting only the distinct ones).

The product of its digits is 71442000, while the sum is 61.

The spelling of 55662637975 in words is "fifty-five billion, six hundred sixty-two million, six hundred thirty-seven thousand, nine hundred seventy-five".