25514557 has 2 divisors, whose sum is σ = 25514558. Its totient is φ = 25514556.

The previous prime is 25514539. The next prime is 25514579. The reversal of 25514557 is 75541552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25462116 + 52441 = 5046^2 + 229^2 .

It is a cyclic number.

It is not a de Polignac number, because 25514557 - 2¹⁹ = 24990269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25514527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12757278 + 12757279.

It is an arithmetic number, because the mean of its divisors is an integer number (12757279).

Almost surely, 2^25514557 is an apocalyptic number.

It is an amenable number.

25514557 is a deficient number, since it is larger than the sum of its proper divisors (1).

25514557 is an equidigital number, since it uses as much as digits as its factorization.

25514557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35000, while the sum is 34.

The square root of 25514557 is about 5051.1936213137. The cubic root of 25514557 is about 294.3942641066.

The spelling of 25514557 in words is "twenty-five million, five hundred fourteen thousand, five hundred fifty-seven".