25140461 has 4 divisors (see below), whose sum is σ = 25494624. Its totient is φ = 24786300.

The previous prime is 25140457. The next prime is 25140463. The reversal of 25140461 is 16404152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25140461 - 2² = 25140457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25140463) 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, 176975 + ... + 177116.

It is an arithmetic number, because the mean of its divisors is an integer number (6373656).

Almost surely, 2^25140461 is an apocalyptic number.

It is an amenable number.

25140461 is a deficient number, since it is larger than the sum of its proper divisors (354163).

25140461 is an equidigital number, since it uses as much as digits as its factorization.

25140461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354162.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 25140461 is about 5014.0264259375. The cubic root of 25140461 is about 292.9483653726.

The spelling of 25140461 in words is "twenty-five million, one hundred forty thousand, four hundred sixty-one".