51400604 has 12 divisors (see below), whose sum is σ = 92852928. Its totient is φ = 24871200.

The previous prime is 51400579. The next prime is 51400621. The reversal of 51400604 is 40600415.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207137 + ... + 207384.

It is an arithmetic number, because the mean of its divisors is an integer number (7737744).

Almost surely, 2^51400604 is an apocalyptic number.

It is an amenable number.

51400604 is a deficient number, since it is larger than the sum of its proper divisors (41452324).

51400604 is a wasteful number, since it uses less digits than its factorization.

51400604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414556 (or 414554 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 51400604 is about 7169.4214550408. The cubic root of 51400604 is about 371.8114337034.

The spelling of 51400604 in words is "fifty-one million, four hundred thousand, six hundred four".