25464999 has 32 divisors (see below), whose sum is σ = 40029184. Its totient is φ = 14100480.

The previous prime is 25464983. The next prime is 25465009. The reversal of 25464999 is 99946452.

It is not a de Polignac number, because 25464999 - 2⁴ = 25464983 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 (25464949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131847 + ... + 132039.

It is an arithmetic number, because the mean of its divisors is an integer number (1250912).

Almost surely, 2^25464999 is an apocalyptic number.

25464999 is a deficient number, since it is larger than the sum of its proper divisors (14564185).

25464999 is a wasteful number, since it uses less digits than its factorization.

25464999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367.

The product of its digits is 699840, while the sum is 48.

The square root of 25464999 is about 5046.2856637333. The cubic root of 25464999 is about 294.2035357687.

The spelling of 25464999 in words is "twenty-five million, four hundred sixty-four thousand, nine hundred ninety-nine".