53555525 has 12 divisors (see below), whose sum is σ = 70315812. Its totient is φ = 40323840.

The previous prime is 53555521. The next prime is 53555527. The reversal of 53555525 is 52555535.

It can be written as a sum of positive squares in 6 ways, for example, as 4008004 + 49547521 = 2002^2 + 7039^2 .

It is not a de Polignac number, because 53555525 - 2² = 53555521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53555521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62582 + ... + 63431.

It is an arithmetic number, because the mean of its divisors is an integer number (5859651).

Almost surely, 2^53555525 is an apocalyptic number.

It is an amenable number.

53555525 is a deficient number, since it is larger than the sum of its proper divisors (16760287).

53555525 is a wasteful number, since it uses less digits than its factorization.

53555525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126040 (or 126035 counting only the distinct ones).

The product of its digits is 93750, while the sum is 35.

The square root of 53555525 is about 7318.1640457153. The cubic root of 53555525 is about 376.9364132286.

The spelling of 53555525 in words is "fifty-three million, five hundred fifty-five thousand, five hundred twenty-five".