625024993 has 2 divisors, whose sum is σ = 625024994. Its totient is φ = 625024992.

The previous prime is 625024991. The next prime is 625025059. The reversal of 625024993 is 399420526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556582464 + 68442529 = 23592^2 + 8273^2 .

It is a cyclic number.

It is not a de Polignac number, because 625024993 - 2¹ = 625024991 is a prime.

Together with 625024991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (625024991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312512496 + 312512497.

It is an arithmetic number, because the mean of its divisors is an integer number (312512497).

Almost surely, 2^625024993 is an apocalyptic number.

It is an amenable number.

625024993 is a deficient number, since it is larger than the sum of its proper divisors (1).

625024993 is an equidigital number, since it uses as much as digits as its factorization.

625024993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 625024993 is about 25000.4998550029. The cubic root of 625024993 is about 854.9993698341. Note that the first 3 decimals are identical.

The spelling of 625024993 in words is "six hundred twenty-five million, twenty-four thousand, nine hundred ninety-three".