625306947 has 8 divisors (see below), whose sum is σ = 834271056. Its totient is φ = 416607072.

The previous prime is 625306939. The next prime is 625306973. The reversal of 625306947 is 749603526.

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

It is not a de Polignac number, because 625306947 - 2³ = 625306939 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 625306899 and 625306908.

It is not an unprimeable number, because it can be changed into a prime (625306987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60468 + ... + 70049.

It is an arithmetic number, because the mean of its divisors is an integer number (104283882).

Almost surely, 2^625306947 is an apocalyptic number.

625306947 is a deficient number, since it is larger than the sum of its proper divisors (208964109).

625306947 is a wasteful number, since it uses less digits than its factorization.

625306947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132117.

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 625306947 is about 25006.1381864533. The cubic root of 625306947 is about 855.1279162947.

The spelling of 625306947 in words is "six hundred twenty-five million, three hundred six thousand, nine hundred forty-seven".