25570063 has 4 divisors (see below), whose sum is σ = 25602480. Its totient is φ = 25537648.

The previous prime is 25570037. The next prime is 25570093. The reversal of 25570063 is 36007552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25570063 - 2⁵ = 25570031 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 (25570033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14995 + ... + 16612.

It is an arithmetic number, because the mean of its divisors is an integer number (6400620).

Almost surely, 2^25570063 is an apocalyptic number.

25570063 is a deficient number, since it is larger than the sum of its proper divisors (32417).

25570063 is an equidigital number, since it uses as much as digits as its factorization.

25570063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32416.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 25570063 is about 5056.6849812896. The cubic root of 25570063 is about 294.6075908599.

The spelling of 25570063 in words is "twenty-five million, five hundred seventy thousand, sixty-three".