25461457 has 8 divisors (see below), whose sum is σ = 29177856. Its totient is φ = 21764832.

The previous prime is 25461431. The next prime is 25461467. The reversal of 25461457 is 75416452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25461457 - 2¹⁹ = 24937169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25461467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2068 + ... + 7429.

It is an arithmetic number, because the mean of its divisors is an integer number (3647232).

Almost surely, 2^25461457 is an apocalyptic number.

It is an amenable number.

25461457 is a deficient number, since it is larger than the sum of its proper divisors (3716399).

25461457 is an equidigital number, since it uses as much as digits as its factorization.

25461457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9887.

The product of its digits is 33600, while the sum is 34.

The square root of 25461457 is about 5045.9347003306. The cubic root of 25461457 is about 294.1898945974.

It can be divided in two parts, 254 and 61457, that multiplied together give a triangular number (15610078 = T₅₅₈₇).

The spelling of 25461457 in words is "twenty-five million, four hundred sixty-one thousand, four hundred fifty-seven".