51532625 has 16 divisors (see below), whose sum is σ = 65100672. Its totient is φ = 40721200.

The previous prime is 51532609. The next prime is 51532643. The reversal of 51532625 is 52623515.

It is a happy number.

It is not a de Polignac number, because 51532625 - 2⁴ = 51532609 is a prime.

It is a super-2 number, since 2×51532625² = 5311222878781250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7892 + ... + 12858.

It is an arithmetic number, because the mean of its divisors is an integer number (4068792).

Almost surely, 2^51532625 is an apocalyptic number.

It is an amenable number.

51532625 is a deficient number, since it is larger than the sum of its proper divisors (13568047).

51532625 is an equidigital number, since it uses as much as digits as its factorization.

51532625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065 (or 5055 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 51532625 is about 7178.6227787787. The cubic root of 51532625 is about 372.1294906081.

The spelling of 51532625 in words is "fifty-one million, five hundred thirty-two thousand, six hundred twenty-five".