51479412 has 24 divisors (see below), whose sum is σ = 121244256. Its totient is φ = 16999008.

The previous prime is 51479411. The next prime is 51479453. The reversal of 51479412 is 21497415.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51479411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18763 + ... + 21330.

It is an arithmetic number, because the mean of its divisors is an integer number (5051844).

Almost surely, 2^51479412 is an apocalyptic number.

It is an amenable number.

51479412 is an abundant number, since it is smaller than the sum of its proper divisors (69764844).

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

51479412 is a wasteful number, since it uses less digits than its factorization.

51479412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40207 (or 40205 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 51479412 is about 7174.9154698853. The cubic root of 51479412 is about 372.0013585336.

The spelling of 51479412 in words is "fifty-one million, four hundred seventy-nine thousand, four hundred twelve".