50401515 has 32 divisors (see below), whose sum is σ = 85847040. Its totient is φ = 25163264.

The previous prime is 50401513. The next prime is 50401523. The reversal of 50401515 is 51510405.

It is not a de Polignac number, because 50401515 - 2¹ = 50401513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50401491 and 50401500.

It is not an unprimeable number, because it can be changed into a prime (50401513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60532 + ... + 61358.

It is an arithmetic number, because the mean of its divisors is an integer number (2682720).

Almost surely, 2^50401515 is an apocalyptic number.

50401515 is a deficient number, since it is larger than the sum of its proper divisors (35445525).

50401515 is a wasteful number, since it uses less digits than its factorization.

50401515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 50401515 is about 7099.4024396424. The cubic root of 50401515 is about 369.3866512110.

It can be divided in two parts, 5040 and 1515, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 50401515 in words is "fifty million, four hundred one thousand, five hundred fifteen".