51234378 has 24 divisors (see below), whose sum is σ = 110959488. Its totient is φ = 15764112.

The previous prime is 51234367. The next prime is 51234383. The reversal of 51234378 is 87343215.

It is a super-2 number, since 2×51234378² = 5249922978093768, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24250 + ... + 26277.

It is an arithmetic number, because the mean of its divisors is an integer number (4623312).

Almost surely, 2^51234378 is an apocalyptic number.

51234378 is an abundant number, since it is smaller than the sum of its proper divisors (59725110).

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

51234378 is a wasteful number, since it uses less digits than its factorization.

51234378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50558 (or 50545 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 51234378 is about 7157.8193606712. The cubic root of 51234378 is about 371.4101967101.

The spelling of 51234378 in words is "fifty-one million, two hundred thirty-four thousand, three hundred seventy-eight".