51404768 has 12 divisors (see below), whose sum is σ = 101203200. Its totient is φ = 25702368.

The previous prime is 51404767. The next prime is 51404807. The reversal of 51404768 is 86740415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51404767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803168 + ... + 803231.

It is an arithmetic number, because the mean of its divisors is an integer number (8433600).

Almost surely, 2^51404768 is an apocalyptic number.

It is an amenable number.

51404768 is a deficient number, since it is larger than the sum of its proper divisors (49798432).

51404768 is a wasteful number, since it uses less digits than its factorization.

51404768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606409 (or 1606401 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 51404768 is about 7169.7118491610. The cubic root of 51404768 is about 371.8214736697.

The spelling of 51404768 in words is "fifty-one million, four hundred four thousand, seven hundred sixty-eight".