55458413121 has 8 divisors (see below), whose sum is σ = 74598927840. Its totient is φ = 36645086912.

The previous prime is 55458413089. The next prime is 55458413137. The reversal of 55458413121 is 12131485455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55458413121 - 2⁵ = 55458413089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55458413121.

It is not an unprimeable number, because it can be changed into a prime (55458413191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81796731 + ... + 81797408.

It is an arithmetic number, because the mean of its divisors is an integer number (9324865980).

Almost surely, 2^55458413121 is an apocalyptic number.

It is an amenable number.

55458413121 is a deficient number, since it is larger than the sum of its proper divisors (19140514719).

55458413121 is a wasteful number, since it uses less digits than its factorization.

55458413121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163594255.

The product of its digits is 96000, while the sum is 39.

Adding to 55458413121 its reverse (12131485455), we get a palindrome (67589898576).

The spelling of 55458413121 in words is "fifty-five billion, four hundred fifty-eight million, four hundred thirteen thousand, one hundred twenty-one".