25213845 has 16 divisors (see below), whose sum is σ = 40419072. Its totient is φ = 13421760.

The previous prime is 25213841. The next prime is 25213861. The reversal of 25213845 is 54831252.

It is not a de Polignac number, because 25213845 - 2² = 25213841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25213841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8644 + ... + 11186.

It is an arithmetic number, because the mean of its divisors is an integer number (2526192).

Almost surely, 2^25213845 is an apocalyptic number.

It is an amenable number.

25213845 is a deficient number, since it is larger than the sum of its proper divisors (15205227).

25213845 is a wasteful number, since it uses less digits than its factorization.

25213845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212.

The product of its digits is 9600, while the sum is 30.

The square root of 25213845 is about 5021.3389648579. The cubic root of 25213845 is about 293.2331233397.

The spelling of 25213845 in words is "twenty-five million, two hundred thirteen thousand, eight hundred forty-five".