25234545 has 64 divisors (see below), whose sum is σ = 49821696. Its totient is φ = 10644480.

The previous prime is 25234537. The next prime is 25234549. The reversal of 25234545 is 54543252.

It is not a de Polignac number, because 25234545 - 2³ = 25234537 is a prime.

It is a super-2 number, since 2×25234545² = 1273564522714050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (25234549) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119490 + ... + 119700.

It is an arithmetic number, because the mean of its divisors is an integer number (778464).

Almost surely, 2^25234545 is an apocalyptic number.

It is an amenable number.

25234545 is a deficient number, since it is larger than the sum of its proper divisors (24587151).

25234545 is a wasteful number, since it uses less digits than its factorization.

25234545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310.

The product of its digits is 24000, while the sum is 30.

The square root of 25234545 is about 5023.3997451925. The cubic root of 25234545 is about 293.3133473240.

Adding to 25234545 its reverse (54543252), we get a palindrome (79777797).

The spelling of 25234545 in words is "twenty-five million, two hundred thirty-four thousand, five hundred forty-five".