625421337 has 16 divisors (see below), whose sum is σ = 863322240. Its totient is φ = 402256512.

The previous prime is 625421333. The next prime is 625421341. The reversal of 625421337 is 733124526.

It is an interprime number because it is at equal distance from previous prime (625421333) and next prime (625421341).

It is not a de Polignac number, because 625421337 - 2² = 625421333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 625421298 and 625421307.

It is not an unprimeable number, because it can be changed into a prime (625421333) 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 15 ways as a sum of consecutive naturals, for example, 171588 + ... + 175194.

It is an arithmetic number, because the mean of its divisors is an integer number (53957640).

Almost surely, 2^625421337 is an apocalyptic number.

It is an amenable number.

625421337 is a deficient number, since it is larger than the sum of its proper divisors (237900903).

625421337 is a wasteful number, since it uses less digits than its factorization.

625421337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632.

The product of its digits is 30240, while the sum is 33.

The square root of 625421337 is about 25008.4253202796. The cubic root of 625421337 is about 855.1800571505.

The spelling of 625421337 in words is "six hundred twenty-five million, four hundred twenty-one thousand, three hundred thirty-seven".