51054907 has 4 divisors (see below), whose sum is σ = 51100416. Its totient is φ = 51009400.

The previous prime is 51054901. The next prime is 51054929. The reversal of 51054907 is 70945015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51054907 - 2¹⁹ = 50530619 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51054901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21028 + ... + 23329.

It is an arithmetic number, because the mean of its divisors is an integer number (12775104).

Almost surely, 2^51054907 is an apocalyptic number.

51054907 is a deficient number, since it is larger than the sum of its proper divisors (45509).

51054907 is a wasteful number, since it uses less digits than its factorization.

51054907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45508.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 51054907 is about 7145.2716533383. The cubic root of 51054907 is about 370.9760133479.

The spelling of 51054907 in words is "fifty-one million, fifty-four thousand, nine hundred seven".