25271120 has 40 divisors (see below), whose sum is σ = 67150464. Its totient is φ = 8664192.

The previous prime is 25271069. The next prime is 25271131. The reversal of 25271120 is 2117252.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 25271092 and 25271101.

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, 22004 + ... + 23123.

Almost surely, 2^25271120 is an apocalyptic number.

25271120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25271120 is an abundant number, since it is smaller than the sum of its proper divisors (41879344).

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

25271120 is a wasteful number, since it uses less digits than its factorization.

25271120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45147 (or 45141 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 25271120 is about 5027.0388898436. The cubic root of 25271120 is about 293.4549885651.

Adding to 25271120 its reverse (2117252), we get a palindrome (27388372).

The spelling of 25271120 in words is "twenty-five million, two hundred seventy-one thousand, one hundred twenty".