25145330 has 32 divisors (see below), whose sum is σ = 52790400. Its totient is φ = 8620080.

The previous prime is 25145327. The next prime is 25145333. The reversal of 25145330 is 3354152.

It is an interprime number because it is at equal distance from previous prime (25145327) and next prime (25145333).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25145296 and 25145305.

It is not an unprimeable number, because it can be changed into a prime (25145333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236 + ... + 7095.

It is an arithmetic number, because the mean of its divisors is an integer number (1649700).

Almost surely, 2^25145330 is an apocalyptic number.

25145330 is an abundant number, since it is smaller than the sum of its proper divisors (27645070).

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

25145330 is an equidigital number, since it uses as much as digits as its factorization.

25145330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7359 (or 7345 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 25145330 is about 5014.5119403587. The cubic root of 25145330 is about 292.9672761040.

Adding to 25145330 its reverse (3354152), we get a palindrome (28499482).

The spelling of 25145330 in words is "twenty-five million, one hundred forty-five thousand, three hundred thirty".