25919950 has 48 divisors (see below), whose sum is σ = 55710720. Its totient is φ = 8788320.

The previous prime is 25919947. The next prime is 25919953. The reversal of 25919950 is 5991952.

It is an interprime number because it is at equal distance from previous prime (25919947) and next prime (25919953).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25919953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35691 + ... + 36409.

It is an arithmetic number, because the mean of its divisors is an integer number (1160640).

Almost surely, 2^25919950 is an apocalyptic number.

25919950 is an abundant number, since it is smaller than the sum of its proper divisors (29790770).

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

25919950 is a wasteful number, since it uses less digits than its factorization.

25919950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 40.

The square root of 25919950 is about 5091.1639140770. The cubic root of 25919950 is about 295.9452586254.

The spelling of 25919950 in words is "twenty-five million, nine hundred nineteen thousand, nine hundred fifty".