25351290 has 96 divisors (see below), whose sum is σ = 70851456. Its totient is φ = 6272640.

The previous prime is 25351289. The next prime is 25351349. The reversal of 25351290 is 9215352.

25351290 is a `hidden beast` number, since 2 + 535 + 129 + 0 = 666.

It is a Curzon number.

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76425 + ... + 76755.

It is an arithmetic number, because the mean of its divisors is an integer number (738036).

Almost surely, 2^25351290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25351290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35425728).

25351290 is an abundant number, since it is smaller than the sum of its proper divisors (45500166).

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

25351290 is a wasteful number, since it uses less digits than its factorization.

25351290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 25351290 is about 5035.0064548121. The cubic root of 25351290 is about 293.7649794685.

The spelling of 25351290 in words is "twenty-five million, three hundred fifty-one thousand, two hundred ninety".