25402050 has 72 divisors (see below), whose sum is σ = 71862960. Its totient is φ = 6415200.

The previous prime is 25402033. The next prime is 25402073. The reversal of 25402050 is 5020452.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 7065 + ... + 10035.

Almost surely, 2^25402050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25402050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35931480).

25402050 is an abundant number, since it is smaller than the sum of its proper divisors (46460910).

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

25402050 is a wasteful number, since it uses less digits than its factorization.

25402050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008 (or 3000 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 25402050 is about 5040.0446426594. The cubic root of 25402050 is about 293.9609138654.

The spelling of 25402050 in words is "twenty-five million, four hundred two thousand, fifty".