20250957 has 8 divisors (see below), whose sum is σ = 27167584. Its totient is φ = 13417488.

The previous prime is 20250947. The next prime is 20250991. The reversal of 20250957 is 75905202.

It is a happy number.

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

It is not a de Polignac number, because 20250957 - 2⁸ = 20250701 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 (20250907) 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, 20218 + ... + 21195.

It is an arithmetic number, because the mean of its divisors is an integer number (3395948).

Almost surely, 2^20250957 is an apocalyptic number.

It is an amenable number.

20250957 is a deficient number, since it is larger than the sum of its proper divisors (6916627).

20250957 is a wasteful number, since it uses less digits than its factorization.

20250957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41579.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 20250957 is about 4500.1063320771. The cubic root of 20250957 is about 272.5723826458.

It can be divided in two parts, 202509 and 57, that added together give a triangular number (202566 = T₆₃₆).

The spelling of 20250957 in words is "twenty million, two hundred fifty thousand, nine hundred fifty-seven".