51756464 has 10 divisors (see below), whose sum is σ = 100278180. Its totient is φ = 25878224.

The previous prime is 51756433. The next prime is 51756469. The reversal of 51756464 is 46465715.

It is not an unprimeable number, because it can be changed into a prime (51756469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1617374 + ... + 1617405.

It is an arithmetic number, because the mean of its divisors is an integer number (10027818).

Almost surely, 2^51756464 is an apocalyptic number.

It is an amenable number.

51756464 is a deficient number, since it is larger than the sum of its proper divisors (48521716).

51756464 is a wasteful number, since it uses less digits than its factorization.

51756464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234787 (or 3234781 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 51756464 is about 7194.1965499978. The cubic root of 51756464 is about 372.6675108050.

The spelling of 51756464 in words is "fifty-one million, seven hundred fifty-six thousand, four hundred sixty-four".