51928047 has 40 divisors (see below), whose sum is σ = 84140496. Its totient is φ = 31788288.

The previous prime is 51928027. The next prime is 51928049. The reversal of 51928047 is 74082915.

It is not a de Polignac number, because 51928047 - 2⁸ = 51927791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51928049) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 58773 + ... + 59649.

Almost surely, 2^51928047 is an apocalyptic number.

51928047 is a deficient number, since it is larger than the sum of its proper divisors (32212449).

51928047 is a wasteful number, since it uses less digits than its factorization.

51928047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 940 counting only the distinct ones).

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

The square root of 51928047 is about 7206.1117809815. Note that the first 3 decimals coincide. The cubic root of 51928047 is about 373.0788789234.

The spelling of 51928047 in words is "fifty-one million, nine hundred twenty-eight thousand, forty-seven".