51929072 has 20 divisors (see below), whose sum is σ = 108352440. Its totient is φ = 23967168.

The previous prime is 51929063. The next prime is 51929077. The reversal of 51929072 is 27092915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51929077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124622 + ... + 125037.

It is an arithmetic number, because the mean of its divisors is an integer number (5417622).

Almost surely, 2^51929072 is an apocalyptic number.

51929072 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51929072 is an abundant number, since it is smaller than the sum of its proper divisors (56423368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51929072 is a wasteful number, since it uses less digits than its factorization.

51929072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249680 (or 249674 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 51929072 is about 7206.1829008151. The cubic root of 51929072 is about 373.0813336235.

The spelling of 51929072 in words is "fifty-one million, nine hundred twenty-nine thousand, seventy-two".