51054736 has 20 divisors (see below), whose sum is σ = 99128700. Its totient is φ = 25473152.

The previous prime is 51054721. The next prime is 51054749. The reversal of 51054736 is 63745015.

It can be written as a sum of positive squares in 2 ways, for example, as 29376400 + 21678336 = 5420^2 + 4656^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51054698 and 51054707.

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, 5010 + ... + 11278.

It is an arithmetic number, because the mean of its divisors is an integer number (4956435).

Almost surely, 2^51054736 is an apocalyptic number.

It is an amenable number.

51054736 is a deficient number, since it is larger than the sum of its proper divisors (48073964).

51054736 is a wasteful number, since it uses less digits than its factorization.

51054736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786 (or 6780 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 51054736 is about 7145.2596873732. The cubic root of 51054736 is about 370.9755991731.

The spelling of 51054736 in words is "fifty-one million, fifty-four thousand, seven hundred thirty-six".