625554029 has 2 divisors, whose sum is σ = 625554030. Its totient is φ = 625554028.

The previous prime is 625553989. The next prime is 625554073. The reversal of 625554029 is 920455526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 428572804 + 196981225 = 20702^2 + 14035^2 .

It is a cyclic number.

It is not a de Polignac number, because 625554029 - 2²⁴ = 608776813 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 625553983 and 625554001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625554829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312777014 + 312777015.

It is an arithmetic number, because the mean of its divisors is an integer number (312777015).

Almost surely, 2^625554029 is an apocalyptic number.

It is an amenable number.

625554029 is a deficient number, since it is larger than the sum of its proper divisors (1).

625554029 is an equidigital number, since it uses as much as digits as its factorization.

625554029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 625554029 is about 25011.0781255027. The cubic root of 625554029 is about 855.2405323967.

The spelling of 625554029 in words is "six hundred twenty-five million, five hundred fifty-four thousand, twenty-nine".