25420950 has 72 divisors (see below), whose sum is σ = 72336888. Its totient is φ = 6378240.

The previous prime is 25420949. The next prime is 25420951. The reversal of 25420950 is 5902452.

It is an interprime number because it is at equal distance from previous prime (25420949) and next prime (25420951).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25420951) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5989 + ... + 9311.

It is an arithmetic number, because the mean of its divisors is an integer number (1004679).

Almost surely, 2^25420950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25420950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36168444).

25420950 is an abundant number, since it is smaller than the sum of its proper divisors (46915938).

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

25420950 is a wasteful number, since it uses less digits than its factorization.

25420950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358 (or 3350 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 25420950 is about 5041.9192774181. The cubic root of 25420950 is about 294.0338014725.

The spelling of 25420950 in words is "twenty-five million, four hundred twenty thousand, nine hundred fifty".