501251130 has 48 divisors (see below), whose sum is σ = 1315458144. Its totient is φ = 132415200.

The previous prime is 501251119. The next prime is 501251131. The reversal of 501251130 is 31152105.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (501251131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16396 + ... + 35655.

It is an arithmetic number, because the mean of its divisors is an integer number (27405378).

Almost surely, 2^501251130 is an apocalyptic number.

501251130 is an abundant number, since it is smaller than the sum of its proper divisors (814207014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501251130 is a wasteful number, since it uses less digits than its factorization.

501251130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52171 (or 52168 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 501251130 is about 22388.6384132667. The cubic root of 501251130 is about 794.3619895986.

The spelling of 501251130 in words is "five hundred one million, two hundred fifty-one thousand, one hundred thirty".