25113577 has 4 divisors (see below), whose sum is σ = 25188436. Its totient is φ = 25038720.

The previous prime is 25113541. The next prime is 25113581. The reversal of 25113577 is 77531152.

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 11943936 + 13169641 = 3456^2 + 3629^2 .

It is a cyclic number.

It is not a de Polignac number, because 25113577 - 2¹⁹ = 24589289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25113377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36924 + ... + 37597.

It is an arithmetic number, because the mean of its divisors is an integer number (6297109).

Almost surely, 2^25113577 is an apocalyptic number.

It is an amenable number.

25113577 is a deficient number, since it is larger than the sum of its proper divisors (74859).

25113577 is an equidigital number, since it uses as much as digits as its factorization.

25113577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74858.

The product of its digits is 7350, while the sum is 31.

The square root of 25113577 is about 5011.3448294844. The cubic root of 25113577 is about 292.8439064979.

The spelling of 25113577 in words is "twenty-five million, one hundred thirteen thousand, five hundred seventy-seven".