51625544 has 32 divisors (see below), whose sum is σ = 98574840. Its totient is φ = 25344000.

The previous prime is 51625543. The next prime is 51625579. The reversal of 51625544 is 44552615.

51625544 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 4 ways, for example, as 40322500 + 11303044 = 6350^2 + 3362^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51625544.

It is not an unprimeable number, because it can be changed into a prime (51625543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146072 + ... + 146424.

Almost surely, 2^51625544 is an apocalyptic number.

It is an amenable number.

51625544 is a deficient number, since it is larger than the sum of its proper divisors (46949296).

51625544 is a wasteful number, since it uses less digits than its factorization.

51625544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 637 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 51625544 is about 7185.0917878619. The cubic root of 51625544 is about 372.3530198018.

The spelling of 51625544 in words is "fifty-one million, six hundred twenty-five thousand, five hundred forty-four".