25264217 has 4 divisors (see below), whose sum is σ = 27560976. Its totient is φ = 22967460.

The previous prime is 25264207. The next prime is 25264219. The reversal of 25264217 is 71246252.

It is a happy number.

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 25264217 - 2⁶ = 25264153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25264217.

It is not an unprimeable number, because it can be changed into a prime (25264219) 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, 1148363 + ... + 1148384.

It is an arithmetic number, because the mean of its divisors is an integer number (6890244).

Almost surely, 2^25264217 is an apocalyptic number.

It is an amenable number.

25264217 is a deficient number, since it is larger than the sum of its proper divisors (2296759).

25264217 is a wasteful number, since it uses less digits than its factorization.

25264217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296758.

The product of its digits is 6720, while the sum is 29.

The square root of 25264217 is about 5026.3522558611. The cubic root of 25264217 is about 293.4282663059.

The spelling of 25264217 in words is "twenty-five million, two hundred sixty-four thousand, two hundred seventeen".