625450138 has 8 divisors (see below), whose sum is σ = 955876788. Its totient is φ = 306824544.

The previous prime is 625450129. The next prime is 625450139. The reversal of 625450138 is 831054526.

625450138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 615883489 + 9566649 = 24817^2 + 3093^2 .

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

It is not an unprimeable number, because it can be changed into a prime (625450139) 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, 2950131 + ... + 2950342.

Almost surely, 2^625450138 is an apocalyptic number.

625450138 is a deficient number, since it is larger than the sum of its proper divisors (330426650).

625450138 is a wasteful number, since it uses less digits than its factorization.

625450138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5900528.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 625450138 is about 25009.0011395897. The cubic root of 625450138 is about 855.1931841213.

The spelling of 625450138 in words is "six hundred twenty-five million, four hundred fifty thousand, one hundred thirty-eight".