25472390 has 32 divisors (see below), whose sum is σ = 47775744. Its totient is φ = 9767520.

The previous prime is 25472389. The next prime is 25472393. The reversal of 25472390 is 9327452.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25472393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39047 + ... + 39693.

It is an arithmetic number, because the mean of its divisors is an integer number (1492992).

Almost surely, 2^25472390 is an apocalyptic number.

25472390 is a deficient number, since it is larger than the sum of its proper divisors (22303354).

25472390 is a wasteful number, since it uses less digits than its factorization.

25472390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 25472390 is about 5047.0179314126. The cubic root of 25472390 is about 294.2319963758.

The spelling of 25472390 in words is "twenty-five million, four hundred seventy-two thousand, three hundred ninety".