51404851 has 12 divisors (see below), whose sum is σ = 53622000. Its totient is φ = 49275120.

The previous prime is 51404827. The next prime is 51404867. The reversal of 51404851 is 15840415.

It is not a de Polignac number, because 51404851 - 2⁵ = 51404819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51404251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143010 + ... + 143368.

It is an arithmetic number, because the mean of its divisors is an integer number (4468500).

Almost surely, 2^51404851 is an apocalyptic number.

51404851 is a deficient number, since it is larger than the sum of its proper divisors (2217149).

51404851 is a wasteful number, since it uses less digits than its factorization.

51404851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 51404851 is about 7169.7176373969. The cubic root of 51404851 is about 371.8216737884.

The spelling of 51404851 in words is "fifty-one million, four hundred four thousand, eight hundred fifty-one".