51013458 has 24 divisors (see below), whose sum is σ = 111213648. Its totient is φ = 16899192.

The previous prime is 51013439. The next prime is 51013493. The reversal of 51013458 is 85431015.

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, 5760 + ... + 11627.

It is an arithmetic number, because the mean of its divisors is an integer number (4633902).

Almost surely, 2^51013458 is an apocalyptic number.

51013458 is an abundant number, since it is smaller than the sum of its proper divisors (60200190).

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

51013458 is a wasteful number, since it uses less digits than its factorization.

51013458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17558 (or 17555 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 51013458 is about 7142.3706148589. The cubic root of 51013458 is about 370.8755936969.

The spelling of 51013458 in words is "fifty-one million, thirteen thousand, four hundred fifty-eight".