55120525425 has 36 divisors (see below), whose sum is σ = 112830843840. Its totient is φ = 25197953760.

The previous prime is 55120525423. The next prime is 55120525429. The reversal of 55120525425 is 52452502155.

55120525425 is a `hidden beast` number, since 5 + 5 + 1 + 205 + 25 + 425 = 666.

55120525425 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 55120525425 - 2¹ = 55120525423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55120525425.

It is not an unprimeable number, because it can be changed into a prime (55120525423) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17497005 + ... + 17500154.

Almost surely, 2^55120525425 is an apocalyptic number.

It is an amenable number.

55120525425 is an abundant number, since it is smaller than the sum of its proper divisors (57710318415).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55120525425 is a wasteful number, since it uses less digits than its factorization.

55120525425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34997182 (or 34997174 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 55120525425 in words is "fifty-five billion, one hundred twenty million, five hundred twenty-five thousand, four hundred twenty-five".