50220725 has 12 divisors (see below), whose sum is σ = 62480004. Its totient is φ = 40043520.

The previous prime is 50220679. The next prime is 50220739. The reversal of 50220725 is 52702205.

It can be written as a sum of positive squares in 6 ways, for example, as 11195716 + 39025009 = 3346^2 + 6247^2 .

It is a de Polignac number, because none of the positive numbers 2^k-50220725 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50220725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4757 + ... + 11093.

It is an arithmetic number, because the mean of its divisors is an integer number (5206667).

Almost surely, 2^50220725 is an apocalyptic number.

It is an amenable number.

50220725 is a deficient number, since it is larger than the sum of its proper divisors (12259279).

50220725 is a wasteful number, since it uses less digits than its factorization.

50220725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664 (or 6659 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 50220725 is about 7086.6582392549. The cubic root of 50220725 is about 368.9444593418.

The spelling of 50220725 in words is "fifty million, two hundred twenty thousand, seven hundred twenty-five".