50505525 has 90 divisors (see below), whose sum is σ = 109041570. Its totient is φ = 23042880.

The previous prime is 50505523. The next prime is 50505527. The reversal of 50505525 is 52550505.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (50505523) and next prime (50505527).

It can be written as a sum of positive squares in 3 ways, for example, as 8398404 + 42107121 = 2898^2 + 6489^2 .

It is not a de Polignac number, because 50505525 - 2¹ = 50505523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505523) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 98971 + ... + 99479.

It is an arithmetic number, because the mean of its divisors is an integer number (1211573).

Almost surely, 2^50505525 is an apocalyptic number.

It is an amenable number.

50505525 is an abundant number, since it is smaller than the sum of its proper divisors (58536045).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50505525 is a wasteful number, since it uses less digits than its factorization.

50505525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 27.

The square root of 50505525 is about 7106.7239287874. The cubic root of 50505525 is about 369.6405688939.

The spelling of 50505525 in words is "fifty million, five hundred five thousand, five hundred twenty-five".