501013427 has 4 divisors (see below), whose sum is σ = 509505240. Its totient is φ = 492521616.

The previous prime is 501013391. The next prime is 501013453. The reversal of 501013427 is 724310105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724310105 = 5 ⋅144862021.

It is not a de Polignac number, because 501013427 - 2¹⁸ = 500751283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501013027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4245818 + ... + 4245935.

It is an arithmetic number, because the mean of its divisors is an integer number (127376310).

Almost surely, 2^501013427 is an apocalyptic number.

501013427 is a deficient number, since it is larger than the sum of its proper divisors (8491813).

501013427 is an equidigital number, since it uses as much as digits as its factorization.

501013427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8491812.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 501013427 is about 22383.3292206499. The cubic root of 501013427 is about 794.2364024612.

The spelling of 501013427 in words is "five hundred one million, thirteen thousand, four hundred twenty-seven".