25030657 has 6 divisors (see below), whose sum is σ = 26417778. Its totient is φ = 23712912.

The previous prime is 25030639. The next prime is 25030661. The reversal of 25030657 is 75603052.

It can be written as a sum of positive squares in only one way, i.e., 21492496 + 3538161 = 4636^2 + 1881^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25030657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25070657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34308 + ... + 35029.

It is an arithmetic number, because the mean of its divisors is an integer number (4402963).

Almost surely, 2^25030657 is an apocalyptic number.

It is an amenable number.

25030657 is a deficient number, since it is larger than the sum of its proper divisors (1387121).

25030657 is an equidigital number, since it uses as much as digits as its factorization.

25030657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69375 (or 69356 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 25030657 is about 5003.0647607242. The cubic root of 25030657 is about 292.5212471477.

The spelling of 25030657 in words is "twenty-five million, thirty thousand, six hundred fifty-seven".