25202261 has 8 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 21431088.

The previous prime is 25202213. The next prime is 25202267. The reversal of 25202261 is 16220252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-25202261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25202267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13286 + ... + 15063.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 2^25202261 is an apocalyptic number.

It is an amenable number.

25202261 is a deficient number, since it is larger than the sum of its proper divisors (3828139).

25202261 is a wasteful number, since it uses less digits than its factorization.

25202261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28483.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 25202261 is about 5020.1853551438. The cubic root of 25202261 is about 293.1882097504.

Subtracting from 25202261 its reverse (16220252), we obtain a square (8982009 = 2997²).

The spelling of 25202261 in words is "twenty-five million, two hundred two thousand, two hundred sixty-one".