25440332 has 6 divisors (see below), whose sum is σ = 44520588. Its totient is φ = 12720164.

The previous prime is 25440319. The next prime is 25440341. The reversal of 25440332 is 23304452.

It is a junction number, because it is equal to n+sod(n) for n = 25440298 and 25440307.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3180038 + ... + 3180045.

It is an arithmetic number, because the mean of its divisors is an integer number (7420098).

Almost surely, 2^25440332 is an apocalyptic number.

It is an amenable number.

25440332 is a deficient number, since it is larger than the sum of its proper divisors (19080256).

25440332 is a wasteful number, since it uses less digits than its factorization.

25440332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360087 (or 6360085 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 25440332 is about 5043.8409967008. The cubic root of 25440332 is about 294.1085103954.

Adding to 25440332 its reverse (23304452), we get a palindrome (48744784).

The spelling of 25440332 in words is "twenty-five million, four hundred forty thousand, three hundred thirty-two".