25284732 has 24 divisors (see below), whose sum is σ = 64361472. Its totient is φ = 7662000.

The previous prime is 25284719. The next prime is 25284739. The reversal of 25284732 is 23748252.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 25284693 and 25284702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25284739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95644 + ... + 95907.

It is an arithmetic number, because the mean of its divisors is an integer number (2681728).

Almost surely, 2^25284732 is an apocalyptic number.

25284732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25284732 is an abundant number, since it is smaller than the sum of its proper divisors (39076740).

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

25284732 is a wasteful number, since it uses less digits than its factorization.

25284732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191569 (or 191567 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 25284732 is about 5028.3925861054. The cubic root of 25284732 is about 293.5076678333.

It can be divided in two parts, 2528 and 4732, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 25284732 in words is "twenty-five million, two hundred eighty-four thousand, seven hundred thirty-two".