51404776 has 8 divisors (see below), whose sum is σ = 96383970. Its totient is φ = 25702384.

The previous prime is 51404767. The next prime is 51404807. The reversal of 51404776 is 67740415.

It is a happy number.

51404776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 45024100 + 6380676 = 6710^2 + 2526^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×51404776² = 5284901991220352, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3212791 + ... + 3212806.

Almost surely, 2^51404776 is an apocalyptic number.

It is an amenable number.

51404776 is a deficient number, since it is larger than the sum of its proper divisors (44979194).

51404776 is a wasteful number, since it uses less digits than its factorization.

51404776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6425603 (or 6425599 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 51404776 is about 7169.7124070635. The cubic root of 51404776 is about 371.8214929583.

The spelling of 51404776 in words is "fifty-one million, four hundred four thousand, seven hundred seventy-six".