25928455 has 16 divisors (see below), whose sum is σ = 35642880. Its totient is φ = 17737632.

The previous prime is 25928401. The next prime is 25928479. The reversal of 25928455 is 55482952.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25928455 is a prime.

It is a congruent number.

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, 24936 + ... + 25954.

It is an arithmetic number, because the mean of its divisors is an integer number (2227680).

Almost surely, 2^25928455 is an apocalyptic number.

25928455 is a deficient number, since it is larger than the sum of its proper divisors (9714425).

25928455 is a wasteful number, since it uses less digits than its factorization.

25928455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758.

The product of its digits is 144000, while the sum is 40.

The square root of 25928455 is about 5091.9991162607. Note that the first 3 decimals coincide. The cubic root of 25928455 is about 295.9776241608.

The spelling of 25928455 in words is "twenty-five million, nine hundred twenty-eight thousand, four hundred fifty-five".