25741920 has 48 divisors (see below), whose sum is σ = 81088560. Its totient is φ = 6864384.

The previous prime is 25741909. The next prime is 25741943. The reversal of 25741920 is 2914752.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 26335 + ... + 27294.

It is an arithmetic number, because the mean of its divisors is an integer number (1689345).

Almost surely, 2^25741920 is an apocalyptic number.

25741920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25741920 is an abundant number, since it is smaller than the sum of its proper divisors (55346640).

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

25741920 is a wasteful number, since it uses less digits than its factorization.

25741920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53647 (or 53639 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 25741920 is about 5073.6495740246. The cubic root of 25741920 is about 295.2661392187.

The spelling of 25741920 in words is "twenty-five million, seven hundred forty-one thousand, nine hundred twenty".