25213650 has 192 divisors, whose sum is σ = 81423360. Its totient is φ = 5011200.

The previous prime is 25213649. The next prime is 25213651. The reversal of 25213650 is 5631252.

It is an interprime number because it is at equal distance from previous prime (25213649) and next prime (25213651).

It is a self number, because there is not a number n which added to its sum of digits gives 25213650.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25213651) 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 95 ways as a sum of consecutive naturals, for example, 427321 + ... + 427379.

It is an arithmetic number, because the mean of its divisors is an integer number (424080).

Almost surely, 2^25213650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25213650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40711680).

25213650 is an abundant number, since it is smaller than the sum of its proper divisors (56209710).

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

25213650 is a wasteful number, since it uses less digits than its factorization.

25213650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 25213650 is about 5021.3195476886. The cubic root of 25213650 is about 293.2323673978.

The spelling of 25213650 in words is "twenty-five million, two hundred thirteen thousand, six hundred fifty".