50515525 has 6 divisors (see below), whose sum is σ = 62639282. Its totient is φ = 40412400.

The previous prime is 50515511. The next prime is 50515529. The reversal of 50515525 is 52551505.

It is a happy number.

50515525 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 3 ways, for example, as 982081 + 49533444 = 991^2 + 7038^2 .

It is a de Polignac number, because none of the positive numbers 2^k-50515525 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50515493 and 50515502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50515529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1010286 + ... + 1010335.

Almost surely, 2^50515525 is an apocalyptic number.

It is an amenable number.

50515525 is a deficient number, since it is larger than the sum of its proper divisors (12123757).

50515525 is a wasteful number, since it uses less digits than its factorization.

50515525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020631 (or 2020626 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 50515525 is about 7107.4274530241. The cubic root of 50515525 is about 369.6649633323.

It can be divided in two parts, 50515 and 525, that added together give a triangular number (51040 = T₃₁₉).

The spelling of 50515525 in words is "fifty million, five hundred fifteen thousand, five hundred twenty-five".