51234408 has 24 divisors (see below), whose sum is σ = 138760050. Its totient is φ = 17078112.

The previous prime is 51234389. The next prime is 51234433. The reversal of 51234408 is 80443215.

It can be written as a sum of positive squares in only one way, i.e., 37970244 + 13264164 = 6162^2 + 3642^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×51234408² = 5249929126220928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355723 + ... + 355866.

Almost surely, 2^51234408 is an apocalyptic number.

It is an amenable number.

51234408 is an abundant number, since it is smaller than the sum of its proper divisors (87525642).

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

51234408 is a wasteful number, since it uses less digits than its factorization.

51234408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711601 (or 711594 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 51234408 is about 7157.8214562812. The cubic root of 51234408 is about 371.4102692024.

The spelling of 51234408 in words is "fifty-one million, two hundred thirty-four thousand, four hundred eight".