25572123 has 6 divisors (see below), whose sum is σ = 36937524. Its totient is φ = 17048076.

The previous prime is 25572121. The next prime is 25572137. The reversal of 25572123 is 32127552.

It is not a de Polignac number, because 25572123 - 2¹ = 25572121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25572121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1420665 + ... + 1420682.

It is an arithmetic number, because the mean of its divisors is an integer number (6156254).

Almost surely, 2^25572123 is an apocalyptic number.

25572123 is a deficient number, since it is larger than the sum of its proper divisors (11365401).

25572123 is a wasteful number, since it uses less digits than its factorization.

25572123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841353 (or 2841350 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 25572123 is about 5056.8886679459. Note that the first 3 decimals coincide. The cubic root of 25572123 is about 294.6155021342.

Adding to 25572123 its reverse (32127552), we get a palindrome (57699675).

The spelling of 25572123 in words is "twenty-five million, five hundred seventy-two thousand, one hundred twenty-three".