25464749 has 8 divisors (see below), whose sum is σ = 26646720. Its totient is φ = 24289056.

The previous prime is 25464739. The next prime is 25464763. The reversal of 25464749 is 94746452.

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 25464749 - 2⁸ = 25464493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25464739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8054 + ... + 10760.

It is an arithmetic number, because the mean of its divisors is an integer number (3330840).

Almost surely, 2^25464749 is an apocalyptic number.

It is an amenable number.

25464749 is a deficient number, since it is larger than the sum of its proper divisors (1181971).

25464749 is a wasteful number, since it uses less digits than its factorization.

25464749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139.

The product of its digits is 241920, while the sum is 41.

The square root of 25464749 is about 5046.2608929781. The cubic root of 25464749 is about 294.2025729946.

The spelling of 25464749 in words is "twenty-five million, four hundred sixty-four thousand, seven hundred forty-nine".