51544616 has 16 divisors (see below), whose sum is σ = 98894400. Its totient is φ = 25172784.

The previous prime is 51544609. The next prime is 51544621. The reversal of 51544616 is 61644515.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74576 + ... + 75263.

It is an arithmetic number, because the mean of its divisors is an integer number (6180900).

Almost surely, 2^51544616 is an apocalyptic number.

It is an amenable number.

51544616 is a deficient number, since it is larger than the sum of its proper divisors (47349784).

51544616 is a wasteful number, since it uses less digits than its factorization.

51544616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149888 (or 149884 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 51544616 is about 7179.4579182554. The cubic root of 51544616 is about 372.1583516689.

The spelling of 51544616 in words is "fifty-one million, five hundred forty-four thousand, six hundred sixteen".