25464499 has 2 divisors, whose sum is σ = 25464500. Its totient is φ = 25464498.

The previous prime is 25464493. The next prime is 25464559. The reversal of 25464499 is 99446452.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25464499 is a prime.

It is not a weakly prime, because it can be changed into another prime (25464493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12732249 + 12732250.

It is an arithmetic number, because the mean of its divisors is an integer number (12732250).

Almost surely, 2^25464499 is an apocalyptic number.

25464499 is a deficient number, since it is larger than the sum of its proper divisors (1).

25464499 is an equidigital number, since it uses as much as digits as its factorization.

25464499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The square root of 25464499 is about 5046.2361221013. The cubic root of 25464499 is about 294.2016102142.

The spelling of 25464499 in words is "twenty-five million, four hundred sixty-four thousand, four hundred ninety-nine".