20425095 has 32 divisors (see below), whose sum is σ = 38227200. Its totient is φ = 10318752.

The previous prime is 20425091. The next prime is 20425099. The reversal of 20425095 is 59052402.

It is an interprime number because it is at equal distance from previous prime (20425091) and next prime (20425099).

It is not a de Polignac number, because 20425095 - 2² = 20425091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1417 + ... + 6546.

It is an arithmetic number, because the mean of its divisors is an integer number (1194600).

Almost surely, 2^20425095 is an apocalyptic number.

20425095 is a deficient number, since it is larger than the sum of its proper divisors (17802105).

20425095 is a wasteful number, since it uses less digits than its factorization.

20425095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7996 (or 7990 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 20425095 is about 4519.4131256171. The cubic root of 20425095 is about 273.3514372634.

Adding to 20425095 its reverse (59052402), we get a palindrome (79477497).

The spelling of 20425095 in words is "twenty million, four hundred twenty-five thousand, ninety-five".