55244625121 has 16 divisors (see below), whose sum is σ = 65996582400. Its totient is φ = 46197584160.

The previous prime is 55244625113. The next prime is 55244625181. The reversal of 55244625121 is 12152644255.

55244625121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55244625121 - 2³ = 55244625113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55244625181) 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, 1950121 + ... + 1978246.

It is an arithmetic number, because the mean of its divisors is an integer number (4124786400).

Almost surely, 2^55244625121 is an apocalyptic number.

It is an amenable number.

55244625121 is a deficient number, since it is larger than the sum of its proper divisors (10751957279).

55244625121 is an equidigital number, since it uses as much as digits as its factorization.

55244625121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928429 (or 3928415 counting only the distinct ones).

The product of its digits is 96000, while the sum is 37.

The spelling of 55244625121 in words is "fifty-five billion, two hundred forty-four million, six hundred twenty-five thousand, one hundred twenty-one".