51544564 has 24 divisors (see below), whose sum is σ = 94385088. Its totient is φ = 24583680.

The previous prime is 51544547. The next prime is 51544579. The reversal of 51544564 is 46544515.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 52599 + ... + 53569.

It is an arithmetic number, because the mean of its divisors is an integer number (3932712).

Almost surely, 2^51544564 is an apocalyptic number.

It is an amenable number.

51544564 is a deficient number, since it is larger than the sum of its proper divisors (42840524).

51544564 is a wasteful number, since it uses less digits than its factorization.

51544564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575 (or 1573 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 51544564 is about 7179.4542968111. The cubic root of 51544564 is about 372.1582265201.

The spelling of 51544564 in words is "fifty-one million, five hundred forty-four thousand, five hundred sixty-four".