51928704 has 48 divisors (see below), whose sum is σ = 149433570. Its totient is φ = 17309184.

The previous prime is 51928699. The next prime is 51928739. The reversal of 51928704 is 40782915.

It can be written as a sum of positive squares in only one way, i.e., 42928704 + 9000000 = 6552^2 + 3000^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21387 + ... + 23690.

Almost surely, 2^51928704 is an apocalyptic number.

It is an amenable number.

51928704 is an abundant number, since it is smaller than the sum of its proper divisors (97504866).

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

51928704 is a wasteful number, since it uses less digits than its factorization.

51928704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45097 (or 45082 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 51928704 is about 7206.1573671410. The cubic root of 51928704 is about 373.0804523300.

The spelling of 51928704 in words is "fifty-one million, nine hundred twenty-eight thousand, seven hundred four".