51769408 has 28 divisors (see below), whose sum is σ = 106276140. Its totient is φ = 24991232.

The previous prime is 51769381. The next prime is 51769409. The reversal of 51769408 is 80496715.

It can be written as a sum of positive squares in 2 ways, for example, as 44195904 + 7573504 = 6648^2 + 2752^2 .

It is not an unprimeable number, because it can be changed into a prime (51769409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12091 + ... + 15802.

Almost surely, 2^51769408 is an apocalyptic number.

51769408 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

51769408 is an abundant number, since it is smaller than the sum of its proper divisors (54506732).

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

51769408 is a wasteful number, since it uses less digits than its factorization.

51769408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27934 (or 27924 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 51769408 is about 7195.0961077667. The cubic root of 51769408 is about 372.6985755636.

The spelling of 51769408 in words is "fifty-one million, seven hundred sixty-nine thousand, four hundred eight".