25570623 has 8 divisors (see below), whose sum is σ = 36716848. Its totient is φ = 15735744.

The previous prime is 25570621. The next prime is 25570627. The reversal of 25570623 is 32607552.

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

It is not a de Polignac number, because 25570623 - 2¹ = 25570621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25570621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327790 + ... + 327867.

It is an arithmetic number, because the mean of its divisors is an integer number (4589606).

Almost surely, 2^25570623 is an apocalyptic number.

25570623 is a deficient number, since it is larger than the sum of its proper divisors (11146225).

25570623 is a wasteful number, since it uses less digits than its factorization.

25570623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655673.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 25570623 is about 5056.7403532315. The cubic root of 25570623 is about 294.6097415396.

The spelling of 25570623 in words is "twenty-five million, five hundred seventy thousand, six hundred twenty-three".