625012001 has 2 divisors, whose sum is σ = 625012002. Its totient is φ = 625012000.

The previous prime is 625011991. The next prime is 625012013. The reversal of 625012001 is 100210526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 619014400 + 5997601 = 24880^2 + 2449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625012001 is a prime.

It is not a weakly prime, because it can be changed into another prime (625012081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312506000 + 312506001.

It is an arithmetic number, because the mean of its divisors is an integer number (312506001).

Almost surely, 2^625012001 is an apocalyptic number.

It is an amenable number.

625012001 is a deficient number, since it is larger than the sum of its proper divisors (1).

625012001 is an equidigital number, since it uses as much as digits as its factorization.

625012001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 625012001 is about 25000.2400188478. The cubic root of 625012001 is about 854.9934456823.

Adding to 625012001 its reverse (100210526), we get a palindrome (725222527).

The spelling of 625012001 in words is "six hundred twenty-five million, twelve thousand, one".