51010404 has 24 divisors (see below), whose sum is σ = 126026208. Its totient is φ = 16003200.

The previous prime is 51010373. The next prime is 51010411. The reversal of 51010404 is 40401015.

It is a super-2 number, since 2×51010404² = 5204122632486432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124822 + ... + 125229.

It is an arithmetic number, because the mean of its divisors is an integer number (5251092).

Almost surely, 2^51010404 is an apocalyptic number.

It is an amenable number.

51010404 is an abundant number, since it is smaller than the sum of its proper divisors (75015804).

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

51010404 is a wasteful number, since it uses less digits than its factorization.

51010404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250075 (or 250073 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 51010404 is about 7142.1568170966. The cubic root of 51010404 is about 370.8681925345.

Adding to 51010404 its reverse (40401015), we get a palindrome (91411419).

The spelling of 51010404 in words is "fifty-one million, ten thousand, four hundred four".