625232257 has 8 divisors (see below), whose sum is σ = 696545640. Its totient is φ = 557235840.

The previous prime is 625232233. The next prime is 625232317. The reversal of 625232257 is 752232526.

It can be written as a sum of positive squares in 4 ways, for example, as 17313921 + 607918336 = 4161^2 + 24656^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 625232257 - 2¹¹ = 625230209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625232227) 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, 828844 + ... + 829597.

It is an arithmetic number, because the mean of its divisors is an integer number (87068205).

Almost surely, 2^625232257 is an apocalyptic number.

It is an amenable number.

625232257 is a deficient number, since it is larger than the sum of its proper divisors (71313383).

625232257 is a wasteful number, since it uses less digits than its factorization.

625232257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658483.

The product of its digits is 50400, while the sum is 34.

The square root of 625232257 is about 25004.6447085337. The cubic root of 625232257 is about 855.0938679245.

The spelling of 625232257 in words is "six hundred twenty-five million, two hundred thirty-two thousand, two hundred fifty-seven".