501401902 has 4 divisors (see below), whose sum is σ = 752102856. Its totient is φ = 250700950.

The previous prime is 501401819. The next prime is 501401903. The reversal of 501401902 is 209104105.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501401903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125350474 + ... + 125350477.

It is an arithmetic number, because the mean of its divisors is an integer number (188025714).

Almost surely, 2^501401902 is an apocalyptic number.

501401902 is a deficient number, since it is larger than the sum of its proper divisors (250700954).

501401902 is a wasteful number, since it uses less digits than its factorization.

501401902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250700953.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 501401902 is about 22392.0053143974. The cubic root of 501401902 is about 794.4416273506.

The spelling of 501401902 in words is "five hundred one million, four hundred one thousand, nine hundred two".