25279950 has 24 divisors (see below), whose sum is σ = 62694648. Its totient is φ = 6741280.

The previous prime is 25279939. The next prime is 25279951. The reversal of 25279950 is 5997252.

It is a junction number, because it is equal to n+sod(n) for n = 25279899 and 25279908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25279951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84117 + ... + 84416.

It is an arithmetic number, because the mean of its divisors is an integer number (2612277).

Almost surely, 2^25279950 is an apocalyptic number.

25279950 is an abundant number, since it is smaller than the sum of its proper divisors (37414698).

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

25279950 is a wasteful number, since it uses less digits than its factorization.

25279950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168548 (or 168543 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 25279950 is about 5027.9170637551. The cubic root of 25279950 is about 293.4891633571.

The spelling of 25279950 in words is "twenty-five million, two hundred seventy-nine thousand, nine hundred fifty".