51079790 has 16 divisors (see below), whose sum is σ = 96783120. Its totient is φ = 19356480.

The previous prime is 51079783. The next prime is 51079801. The reversal of 51079790 is 9797015.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134231 + ... + 134610.

It is an arithmetic number, because the mean of its divisors is an integer number (6048945).

Almost surely, 2^51079790 is an apocalyptic number.

51079790 is a deficient number, since it is larger than the sum of its proper divisors (45703330).

51079790 is a wasteful number, since it uses less digits than its factorization.

51079790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268867.

The product of its (nonzero) digits is 19845, while the sum is 38.

The square root of 51079790 is about 7147.0126626444. The cubic root of 51079790 is about 371.0362719820.

The spelling of 51079790 in words is "fifty-one million, seventy-nine thousand, seven hundred ninety".