51299892 has 60 divisors (see below), whose sum is σ = 153273120. Its totient is φ = 14656464.

The previous prime is 51299891. The next prime is 51299909. The reversal of 51299892 is 29899215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51299891) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9042 + ... + 13577.

It is an arithmetic number, because the mean of its divisors is an integer number (2554552).

Almost surely, 2^51299892 is an apocalyptic number.

It is an amenable number.

51299892 is an abundant number, since it is smaller than the sum of its proper divisors (101973228).

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

51299892 is a wasteful number, since it uses less digits than its factorization.

51299892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22642 (or 22631 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 51299892 is about 7162.3942924137. The cubic root of 51299892 is about 371.5684381389.

The spelling of 51299892 in words is "fifty-one million, two hundred ninety-nine thousand, eight hundred ninety-two".