50513511 has 16 divisors (see below), whose sum is σ = 72382464. Its totient is φ = 31219584.

The previous prime is 50513509. The next prime is 50513521. The reversal of 50513511 is 11531505.

It is not a de Polignac number, because 50513511 - 2¹ = 50513509 is a prime.

It is a super-2 number, since 2×50513511² = 5103229587094242, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3975 + ... + 10808.

It is an arithmetic number, because the mean of its divisors is an integer number (4523904).

Almost surely, 2^50513511 is an apocalyptic number.

50513511 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

50513511 is a deficient number, since it is larger than the sum of its proper divisors (21868953).

50513511 is a wasteful number, since it uses less digits than its factorization.

50513511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14870.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 50513511 is about 7107.2857688431. The cubic root of 50513511 is about 369.6600505514.

The spelling of 50513511 in words is "fifty million, five hundred thirteen thousand, five hundred eleven".