25572145 has 8 divisors (see below), whose sum is σ = 30833280. Its totient is φ = 20359920.

The previous prime is 25572137. The next prime is 25572181. The reversal of 25572145 is 54127552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25572145 - 2³ = 25572137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11065 + ... + 13174.

It is an arithmetic number, because the mean of its divisors is an integer number (3854160).

Almost surely, 2^25572145 is an apocalyptic number.

It is an amenable number.

25572145 is a deficient number, since it is larger than the sum of its proper divisors (5261135).

25572145 is a wasteful number, since it uses less digits than its factorization.

25572145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24455.

The product of its digits is 14000, while the sum is 31.

The square root of 25572145 is about 5056.8908431960. The cubic root of 25572145 is about 294.6155866212.

Adding to 25572145 its reverse (54127552), we get a palindrome (79699697).

The spelling of 25572145 in words is "twenty-five million, five hundred seventy-two thousand, one hundred forty-five".