25733280 has 48 divisors (see below), whose sum is σ = 81061344. Its totient is φ = 6862080.

The previous prime is 25733261. The next prime is 25733327. The reversal of 25733280 is 8233752.

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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26326 + ... + 27285.

It is an arithmetic number, because the mean of its divisors is an integer number (1688778).

Almost surely, 2^25733280 is an apocalyptic number.

25733280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25733280 is an abundant number, since it is smaller than the sum of its proper divisors (55328064).

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

25733280 is a wasteful number, since it uses less digits than its factorization.

25733280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53629 (or 53621 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 25733280 is about 5072.7980444721. The cubic root of 25733280 is about 295.2331012154.

The spelling of 25733280 in words is "twenty-five million, seven hundred thirty-three thousand, two hundred eighty".