25645350 has 96 divisors (see below), whose sum is σ = 68700960. Its totient is φ = 6307840.

The previous prime is 25645349. The next prime is 25645351. The reversal of 25645350 is 5354652.

It is an interprime number because it is at equal distance from previous prime (25645349) and next prime (25645351).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25645351) 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 47 ways as a sum of consecutive naturals, for example, 226894 + ... + 227006.

It is an arithmetic number, because the mean of its divisors is an integer number (715635).

Almost surely, 2^25645350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25645350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34350480).

25645350 is an abundant number, since it is smaller than the sum of its proper divisors (43055610).

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

25645350 is a wasteful number, since it uses less digits than its factorization.

25645350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 25645350 is about 5064.1238136523. The cubic root of 25645350 is about 294.8964493402.

The spelling of 25645350 in words is "twenty-five million, six hundred forty-five thousand, three hundred fifty".