25069940 has 48 divisors (see below), whose sum is σ = 60461184. Its totient is φ = 8553600.

The previous prime is 25069937. The next prime is 25069981. The reversal of 25069940 is 4996052.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 25069940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46070 + ... + 46610.

It is an arithmetic number, because the mean of its divisors is an integer number (1259608).

Almost surely, 2^25069940 is an apocalyptic number.

25069940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25069940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30230592).

25069940 is an abundant number, since it is smaller than the sum of its proper divisors (35391244).

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

25069940 is a wasteful number, since it uses less digits than its factorization.

25069940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 25069940 is about 5006.9891152268. The cubic root of 25069940 is about 292.6741943386.

The spelling of 25069940 in words is "twenty-five million, sixty-nine thousand, nine hundred forty".