25051950 has 192 divisors, whose sum is σ = 86423040. Its totient is φ = 5184000.

The previous prime is 25051919. The next prime is 25051981. The reversal of 25051950 is 5915052.

It is an interprime number because it is at equal distance from previous prime (25051919) and next prime (25051981).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 103830 + ... + 104070.

It is an arithmetic number, because the mean of its divisors is an integer number (450120).

Almost surely, 2^25051950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25051950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43211520).

25051950 is an abundant number, since it is smaller than the sum of its proper divisors (61371090).

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

25051950 is a wasteful number, since it uses less digits than its factorization.

25051950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 25051950 is about 5005.1923039979. The cubic root of 25051950 is about 292.6041706544.

The spelling of 25051950 in words is "twenty-five million, fifty-one thousand, nine hundred fifty".