53505025425 has 18 divisors (see below), whose sum is σ = 95833445942. Its totient is φ = 28536013440.

The previous prime is 53505025421. The next prime is 53505025471. The reversal of 53505025425 is 52452050535.

53505025425 is a `hidden beast` number, since 5 + 350 + 50 + 254 + 2 + 5 = 666.

53505025425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 4185054864 + 49319970561 = 64692^2 + 222081^2 .

It is not a de Polignac number, because 53505025425 - 2² = 53505025421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53505025425.

It is not an unprimeable number, because it can be changed into a prime (53505025421) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 118899832 + ... + 118900281.

Almost surely, 2^53505025425 is an apocalyptic number.

It is an amenable number.

53505025425 is a deficient number, since it is larger than the sum of its proper divisors (42328420517).

53505025425 is a wasteful number, since it uses less digits than its factorization.

53505025425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237800129 (or 237800121 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 36.

The spelling of 53505025425 in words is "fifty-three billion, five hundred five million, twenty-five thousand, four hundred twenty-five".