25113457 has 2 divisors, whose sum is σ = 25113458. Its totient is φ = 25113456.

The previous prime is 25113377. The next prime is 25113461. The reversal of 25113457 is 75431152.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25040016 + 73441 = 5004^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 25113457 - 2⁷ = 25113329 is a prime.

It is not a weakly prime, because it can be changed into another prime (25113857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12556728 + 12556729.

It is an arithmetic number, because the mean of its divisors is an integer number (12556729).

Almost surely, 2^25113457 is an apocalyptic number.

It is an amenable number.

25113457 is a deficient number, since it is larger than the sum of its proper divisors (1).

25113457 is an equidigital number, since it uses as much as digits as its factorization.

25113457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 28.

The square root of 25113457 is about 5011.3328566360. The cubic root of 25113457 is about 292.8434400659.

The spelling of 25113457 in words is "twenty-five million, one hundred thirteen thousand, four hundred fifty-seven".