51718748 has 24 divisors (see below), whose sum is σ = 94246992. Its totient is φ = 24810624.

The previous prime is 51718739. The next prime is 51718769. The reversal of 51718748 is 84781715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8411 + ... + 13197.

It is an arithmetic number, because the mean of its divisors is an integer number (3926958).

Almost surely, 2^51718748 is an apocalyptic number.

It is an amenable number.

51718748 is a deficient number, since it is larger than the sum of its proper divisors (42528244).

51718748 is a wasteful number, since it uses less digits than its factorization.

51718748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901 (or 4899 counting only the distinct ones).

The product of its digits is 62720, while the sum is 41.

The square root of 51718748 is about 7191.5747927697. The cubic root of 51718748 is about 372.5769653135.

The spelling of 51718748 in words is "fifty-one million, seven hundred eighteen thousand, seven hundred forty-eight".