25226505 has 32 divisors (see below), whose sum is σ = 45532800. Its totient is φ = 13248576.

The previous prime is 25226483. The next prime is 25226567. The reversal of 25226505 is 50562252.

25226505 is a `hidden beast` number, since 2 + 5 + 2 + 2 + 650 + 5 = 666.

It is not a de Polignac number, because 25226505 - 2⁵ = 25226473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7651 + ... + 10439.

It is an arithmetic number, because the mean of its divisors is an integer number (1422900).

Almost surely, 2^25226505 is an apocalyptic number.

It is an amenable number.

25226505 is a deficient number, since it is larger than the sum of its proper divisors (20306295).

25226505 is a wasteful number, since it uses less digits than its factorization.

25226505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870 (or 2864 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 25226505 is about 5022.5994265918. The cubic root of 25226505 is about 293.2821930761.

Adding to 25226505 its reverse (50562252), we get a palindrome (75788757).

The spelling of 25226505 in words is "twenty-five million, two hundred twenty-six thousand, five hundred five".