25155040 has 24 divisors (see below), whose sum is σ = 59429160. Its totient is φ = 10061952.

The previous prime is 25155037. The next prime is 25155061. The reversal of 25155040 is 4055152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78450 + ... + 78769.

It is an arithmetic number, because the mean of its divisors is an integer number (2476215).

Almost surely, 2^25155040 is an apocalyptic number.

25155040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25155040 is an abundant number, since it is smaller than the sum of its proper divisors (34274120).

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

25155040 is a wasteful number, since it uses less digits than its factorization.

25155040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157234 (or 157226 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 25155040 is about 5015.4800368459. The cubic root of 25155040 is about 293.0049815303.

The spelling of 25155040 in words is "twenty-five million, one hundred fifty-five thousand, forty".