51040918 has 8 divisors (see below), whose sum is σ = 76592880. Its totient is φ = 25509960.

The previous prime is 51040889. The next prime is 51040931. The reversal of 51040918 is 81904015.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4303 + ... + 10981.

It is an arithmetic number, because the mean of its divisors is an integer number (9574110).

Almost surely, 2^51040918 is an apocalyptic number.

51040918 is a deficient number, since it is larger than the sum of its proper divisors (25551962).

51040918 is a wasteful number, since it uses less digits than its factorization.

51040918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10502.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 51040918 is about 7144.2926871734. The cubic root of 51040918 is about 370.9421278847.

The spelling of 51040918 in words is "fifty-one million, forty thousand, nine hundred eighteen".