50513505 has 64 divisors (see below), whose sum is σ = 97666560. Its totient is φ = 21805056.

The previous prime is 50513503. The next prime is 50513509. The reversal of 50513505 is 50531505.

It is not a de Polignac number, because 50513505 - 2¹ = 50513503 is a prime.

It is a super-2 number, since 2×50513505² = 5103228374770050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50513501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 161229 + ... + 161541.

It is an arithmetic number, because the mean of its divisors is an integer number (1526040).

Almost surely, 2^50513505 is an apocalyptic number.

It is an amenable number.

50513505 is a deficient number, since it is larger than the sum of its proper divisors (47153055).

50513505 is a wasteful number, since it uses less digits than its factorization.

50513505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410.

The product of its (nonzero) digits is 1875, while the sum is 24.

The square root of 50513505 is about 7107.2853467410. The cubic root of 50513505 is about 369.6600359153.

The spelling of 50513505 in words is "fifty million, five hundred thirteen thousand, five hundred five".