25475472 has 100 divisors (see below), whose sum is σ = 80481456. Its totient is φ = 7715520.

The previous prime is 25475453. The next prime is 25475519. The reversal of 25475472 is 27457452.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13363 + ... + 15149.

Almost surely, 2^25475472 is an apocalyptic number.

25475472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25475472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40240728).

25475472 is an abundant number, since it is smaller than the sum of its proper divisors (55005984).

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

25475472 is a wasteful number, since it uses less digits than its factorization.

25475472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818 (or 1803 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 25475472 is about 5047.3232509916. The cubic root of 25475472 is about 294.2438626415.

The spelling of 25475472 in words is "twenty-five million, four hundred seventy-five thousand, four hundred seventy-two".