25905340 has 24 divisors (see below), whose sum is σ = 55429920. Its totient is φ = 10166208.

The previous prime is 25905301. The next prime is 25905353. The reversal of 25905340 is 4350952.

25905340 = T₃₀₃ + T₃₀₄ + ... + T₅₆₇.

It is a junction number, because it is equal to n+sod(n) for n = 25905299 and 25905308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11160 + ... + 13279.

It is an arithmetic number, because the mean of its divisors is an integer number (2309580).

Almost surely, 2^25905340 is an apocalyptic number.

25905340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25905340 is an abundant number, since it is smaller than the sum of its proper divisors (29524580).

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

25905340 is a wasteful number, since it uses less digits than its factorization.

25905340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24501 (or 24499 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 25905340 is about 5089.7288729362. The cubic root of 25905340 is about 295.8896441552.

The spelling of 25905340 in words is "twenty-five million, nine hundred five thousand, three hundred forty".