20295957 has 16 divisors (see below), whose sum is σ = 30210048. Its totient is φ = 12013680.

The previous prime is 20295949. The next prime is 20295967. The reversal of 20295957 is 75959202.

It is not a de Polignac number, because 20295957 - 2³ = 20295949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20295937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5733 + ... + 8570.

It is an arithmetic number, because the mean of its divisors is an integer number (1888128).

Almost surely, 2^20295957 is an apocalyptic number.

It is an amenable number.

20295957 is a deficient number, since it is larger than the sum of its proper divisors (9914091).

20295957 is a wasteful number, since it uses less digits than its factorization.

20295957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14360.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 20295957 is about 4505.1034394340. The cubic root of 20295957 is about 272.7741292119.

The spelling of 20295957 in words is "twenty million, two hundred ninety-five thousand, nine hundred fifty-seven".