25132290 has 32 divisors (see below), whose sum is σ = 63866880. Its totient is φ = 6307584.

The previous prime is 25132259. The next prime is 25132291. The reversal of 25132290 is 9223152.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25132290.

It is not an unprimeable number, because it can be changed into a prime (25132291) 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, 24130 + ... + 25149.

It is an arithmetic number, because the mean of its divisors is an integer number (1995840).

Almost surely, 2^25132290 is an apocalyptic number.

25132290 is an abundant number, since it is smaller than the sum of its proper divisors (38734590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25132290 is a wasteful number, since it uses less digits than its factorization.

25132290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49306.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 25132290 is about 5013.2115455065. The cubic root of 25132290 is about 292.9166245005.

The spelling of 25132290 in words is "twenty-five million, one hundred thirty-two thousand, two hundred ninety".