625125445031 has 2 divisors, whose sum is σ = 625125445032. Its totient is φ = 625125445030.

The previous prime is 625125445019. The next prime is 625125445033. The reversal of 625125445031 is 130544521526.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 625125445031 - 2⁶ = 625125444967 is a prime.

It is a super-2 number, since 2×625125445031² (a number of 24 digits) contains 22 as substring.

Together with 625125445033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625125445033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312562722515 + 312562722516.

It is an arithmetic number, because the mean of its divisors is an integer number (312562722516).

Almost surely, 2^625125445031 is an apocalyptic number.

625125445031 is a deficient number, since it is larger than the sum of its proper divisors (1).

625125445031 is an equidigital number, since it uses as much as digits as its factorization.

625125445031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 625125445031 its reverse (130544521526), we get a palindrome (755669966557).

The spelling of 625125445031 in words is "six hundred twenty-five billion, one hundred twenty-five million, four hundred forty-five thousand, thirty-one".