625131516 has 12 divisors (see below), whose sum is σ = 1458640232. Its totient is φ = 208377168.

The previous prime is 625131509. The next prime is 625131517. The reversal of 625131516 is 615131526.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×625131516³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625131517) 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, 26047135 + ... + 26047158.

Almost surely, 2^625131516 is an apocalyptic number.

It is an amenable number.

625131516 is an abundant number, since it is smaller than the sum of its proper divisors (833508716).

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

625131516 is a wasteful number, since it uses less digits than its factorization.

625131516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52094300 (or 52094298 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 625131516 is about 25002.6301816429. The cubic root of 625131516 is about 855.0479395848.

The spelling of 625131516 in words is "six hundred twenty-five million, one hundred thirty-one thousand, five hundred sixteen".