51789404 has 6 divisors (see below), whose sum is σ = 90631464. Its totient is φ = 25894700.

The previous prime is 51789379. The next prime is 51789407. The reversal of 51789404 is 40498715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51789407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6473672 + ... + 6473679.

It is an arithmetic number, because the mean of its divisors is an integer number (15105244).

Almost surely, 2^51789404 is an apocalyptic number.

It is an amenable number.

51789404 is a deficient number, since it is larger than the sum of its proper divisors (38842060).

51789404 is a wasteful number, since it uses less digits than its factorization.

51789404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12947355 (or 12947353 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 51789404 is about 7196.4855311464. The cubic root of 51789404 is about 372.7465544872.

The spelling of 51789404 in words is "fifty-one million, seven hundred eighty-nine thousand, four hundred four".