51494612 has 12 divisors (see below), whose sum is σ = 97047636. Its totient is φ = 23766720.

The previous prime is 51494609. The next prime is 51494621. The reversal of 51494612 is 21649415.

It can be written as a sum of positive squares in 2 ways, for example, as 34880836 + 16613776 = 5906^2 + 4076^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495089 + ... + 495192.

It is an arithmetic number, because the mean of its divisors is an integer number (8087303).

Almost surely, 2^51494612 is an apocalyptic number.

51494612 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51494612 is a deficient number, since it is larger than the sum of its proper divisors (45553024).

51494612 is a wasteful number, since it uses less digits than its factorization.

51494612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990298 (or 990296 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 51494612 is about 7175.9746376363. The cubic root of 51494612 is about 372.0379677592.

The spelling of 51494612 in words is "fifty-one million, four hundred ninety-four thousand, six hundred twelve".