50561725 has 6 divisors (see below), whose sum is σ = 62696570. Its totient is φ = 40449360.

The previous prime is 50561683. The next prime is 50561759. The reversal of 50561725 is 52716505.

It can be written as a sum of positive squares in 3 ways, for example, as 4782969 + 45778756 = 2187^2 + 6766^2 .

It is a de Polignac number, because none of the positive numbers 2^k-50561725 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1011210 + ... + 1011259.

Almost surely, 2^50561725 is an apocalyptic number.

It is an amenable number.

50561725 is a deficient number, since it is larger than the sum of its proper divisors (12134845).

50561725 is a wasteful number, since it uses less digits than its factorization.

50561725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022479 (or 2022474 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 50561725 is about 7110.6768313572. The cubic root of 50561725 is about 369.7776238622. Note that the first 3 decimals are identical.

The spelling of 50561725 in words is "fifty million, five hundred sixty-one thousand, seven hundred twenty-five".