25460779 has 4 divisors (see below), whose sum is σ = 26800840. Its totient is φ = 24120720.

The previous prime is 25460761. The next prime is 25460783. The reversal of 25460779 is 97706452.

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

It is a cyclic number.

It is not a de Polignac number, because 25460779 - 2⁷ = 25460651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25460719) 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, 670002 + ... + 670039.

It is an arithmetic number, because the mean of its divisors is an integer number (6700210).

Almost surely, 2^25460779 is an apocalyptic number.

25460779 is a deficient number, since it is larger than the sum of its proper divisors (1340061).

25460779 is a wasteful number, since it uses less digits than its factorization.

25460779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340060.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 25460779 is about 5045.8675170876. The cubic root of 25460779 is about 294.1872832973.

The spelling of 25460779 in words is "twenty-five million, four hundred sixty thousand, seven hundred seventy-nine".