25151145 has 16 divisors (see below), whose sum is σ = 40538880. Its totient is φ = 13314944.

The previous prime is 25151129. The next prime is 25151171. The reversal of 25151145 is 54115152.

It is a cyclic number.

It is not a de Polignac number, because 25151145 - 2⁴ = 25151129 is a prime.

It is a super-2 number, since 2×25151145² = 1265160189622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4065 + ... + 8174.

It is an arithmetic number, because the mean of its divisors is an integer number (2533680).

Almost surely, 2^25151145 is an apocalyptic number.

It is an amenable number.

25151145 is a deficient number, since it is larger than the sum of its proper divisors (15387735).

25151145 is a wasteful number, since it uses less digits than its factorization.

25151145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12384.

The product of its digits is 1000, while the sum is 24.

The square root of 25151145 is about 5015.0917239867. The cubic root of 25151145 is about 292.9898578107.

Adding to 25151145 its reverse (54115152), we get a palindrome (79266297).

The spelling of 25151145 in words is "twenty-five million, one hundred fifty-one thousand, one hundred forty-five".