625321949 has 4 divisors (see below), whose sum is σ = 714653664. Its totient is φ = 535990236.

The previous prime is 625321933. The next prime is 625321951. The reversal of 625321949 is 949123526.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 625321949 - 2⁴ = 625321933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625321969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44665847 + ... + 44665860.

It is an arithmetic number, because the mean of its divisors is an integer number (178663416).

Almost surely, 2^625321949 is an apocalyptic number.

It is an amenable number.

625321949 is a deficient number, since it is larger than the sum of its proper divisors (89331715).

625321949 is an equidigital number, since it uses as much as digits as its factorization.

625321949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89331714.

The product of its digits is 116640, while the sum is 41.

The square root of 625321949 is about 25006.4381510042. The cubic root of 625321949 is about 855.1347548169.

The spelling of 625321949 in words is "six hundred twenty-five million, three hundred twenty-one thousand, nine hundred forty-nine".