25125797 has 4 divisors (see below), whose sum is σ = 25470060. Its totient is φ = 24781536.

The previous prime is 25125787. The next prime is 25125811. The reversal of 25125797 is 79752152.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16370116 + 8755681 = 4046^2 + 2959^2 .

It is a cyclic number.

It is not a de Polignac number, because 25125797 - 2⁴ = 25125781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25125797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25125707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172022 + ... + 172167.

It is an arithmetic number, because the mean of its divisors is an integer number (6367515).

Almost surely, 2^25125797 is an apocalyptic number.

It is an amenable number.

25125797 is a deficient number, since it is larger than the sum of its proper divisors (344263).

25125797 is an equidigital number, since it uses as much as digits as its factorization.

25125797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344262.

The product of its digits is 44100, while the sum is 38.

The square root of 25125797 is about 5012.5639148045. The cubic root of 25125797 is about 292.8913970414.

The spelling of 25125797 in words is "twenty-five million, one hundred twenty-five thousand, seven hundred ninety-seven".