25038157 has 2 divisors, whose sum is σ = 25038158. Its totient is φ = 25038156.

The previous prime is 25038151. The next prime is 25038179. The reversal of 25038157 is 75183052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18412681 + 6625476 = 4291^2 + 2574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25038157 is a prime.

It is equal to p_1568173 and since 25038157 and 1568173 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25038151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12519078 + 12519079.

It is an arithmetic number, because the mean of its divisors is an integer number (12519079).

Almost surely, 2^25038157 is an apocalyptic number.

It is an amenable number.

25038157 is a deficient number, since it is larger than the sum of its proper divisors (1).

25038157 is an equidigital number, since it uses as much as digits as its factorization.

25038157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 25038157 is about 5003.8142451534. The cubic root of 25038157 is about 292.5504605275.

The spelling of 25038157 in words is "twenty-five million, thirty-eight thousand, one hundred fifty-seven".