55102020425 has 24 divisors (see below), whose sum is σ = 69441984000. Its totient is φ = 43366942080.

The previous prime is 55102020419. The next prime is 55102020443. The reversal of 55102020425 is 52402020155.

It is a de Polignac number, because none of the positive numbers 2^k-55102020425 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55102020394 and 55102020403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380552 + ... + 504998.

It is an arithmetic number, because the mean of its divisors is an integer number (2893416000).

Almost surely, 2^55102020425 is an apocalyptic number.

It is an amenable number.

55102020425 is a deficient number, since it is larger than the sum of its proper divisors (14339963575).

55102020425 is a wasteful number, since it uses less digits than its factorization.

55102020425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124745 (or 124740 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The spelling of 55102020425 in words is "fifty-five billion, one hundred two million, twenty thousand, four hundred twenty-five".