55501929397 has 4 divisors (see below), whose sum is σ = 55503012096. Its totient is φ = 55500846700.

The previous prime is 55501929377. The next prime is 55501929449. The reversal of 55501929397 is 79392910555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55501929397 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 (55501929367) 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, 460423 + ... + 568324.

It is an arithmetic number, because the mean of its divisors is an integer number (13875753024).

Almost surely, 2^55501929397 is an apocalyptic number.

It is an amenable number.

55501929397 is a deficient number, since it is larger than the sum of its proper divisors (1082699).

55501929397 is a wasteful number, since it uses less digits than its factorization.

55501929397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082698.

The product of its (nonzero) digits is 3827250, while the sum is 55.

The spelling of 55501929397 in words is "fifty-five billion, five hundred one million, nine hundred twenty-nine thousand, three hundred ninety-seven".