625531427 has 8 divisors (see below), whose sum is σ = 633164400. Its totient is φ = 617912064.

The previous prime is 625531397. The next prime is 625531447. The reversal of 625531427 is 724135526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 625531427 - 2¹⁴ = 625515043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625531447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112724 + ... + 118142.

It is an arithmetic number, because the mean of its divisors is an integer number (79145550).

Almost surely, 2^625531427 is an apocalyptic number.

625531427 is a deficient number, since it is larger than the sum of its proper divisors (7632973).

625531427 is a wasteful number, since it uses less digits than its factorization.

625531427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805.

The product of its digits is 50400, while the sum is 35.

The square root of 625531427 is about 25010.6262816428. The cubic root of 625531427 is about 855.2302319918.

The spelling of 625531427 in words is "six hundred twenty-five million, five hundred thirty-one thousand, four hundred twenty-seven".