25532331 has 24 divisors (see below), whose sum is σ = 38450832. Its totient is φ = 15048000.

The previous prime is 25532329. The next prime is 25532341. The reversal of 25532331 is 13323552.

It is a happy number.

It is not a de Polignac number, because 25532331 - 2¹ = 25532329 is a prime.

It is a super-2 number, since 2×25532331² = 1303799852587122, which contains 22 as substring.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (25532321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12481 + ... + 14381.

It is an arithmetic number, because the mean of its divisors is an integer number (1602118).

Almost surely, 2^25532331 is an apocalyptic number.

25532331 is a deficient number, since it is larger than the sum of its proper divisors (12918501).

25532331 is a wasteful number, since it uses less digits than its factorization.

25532331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963 (or 1952 counting only the distinct ones).

The product of its digits is 2700, while the sum is 24.

The square root of 25532331 is about 5052.9527011442. The cubic root of 25532331 is about 294.4626087393.

Adding to 25532331 its reverse (13323552), we get a palindrome (38855883).

It can be divided in two parts, 2553 and 2331, that added together give a palindrome (4884).

The spelling of 25532331 in words is "twenty-five million, five hundred thirty-two thousand, three hundred thirty-one".