25056402 has 64 divisors (see below), whose sum is σ = 63866880. Its totient is φ = 6379776.

The previous prime is 25056391. The next prime is 25056413. The reversal of 25056402 is 20465052.

It is an interprime number because it is at equal distance from previous prime (25056391) and next prime (25056413).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12643 + ... + 14489.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^25056402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25056402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31933440).

25056402 is an abundant number, since it is smaller than the sum of its proper divisors (38810478).

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

25056402 is a wasteful number, since it uses less digits than its factorization.

25056402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25056402 is about 5005.6370223978. The cubic root of 25056402 is about 292.6215025934.

The spelling of 25056402 in words is "twenty-five million, fifty-six thousand, four hundred two".