51401802 has 16 divisors (see below), whose sum is σ = 108214560. Its totient is φ = 16232112.

The previous prime is 51401773. The next prime is 51401807. The reversal of 51401802 is 20810415.

It is not an unprimeable number, because it can be changed into a prime (51401807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225333 + ... + 225560.

It is an arithmetic number, because the mean of its divisors is an integer number (6763410).

Almost surely, 2^51401802 is an apocalyptic number.

51401802 is an abundant number, since it is smaller than the sum of its proper divisors (56812758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51401802 is a wasteful number, since it uses less digits than its factorization.

51401802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450917.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 51401802 is about 7169.5050038339. The cubic root of 51401802 is about 371.8143222987.

The spelling of 51401802 in words is "fifty-one million, four hundred one thousand, eight hundred two".