20415095 has 8 divisors (see below), whose sum is σ = 24793776. Its totient is φ = 16134976.

The previous prime is 20415091. The next prime is 20415103. The reversal of 20415095 is 59051402.

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

It is a cyclic number.

It is not a de Polignac number, because 20415095 - 2² = 20415091 is a prime.

It is a super-2 number, since 2×20415095² = 833552207718050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20415091) 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, 24182 + ... + 25011.

It is an arithmetic number, because the mean of its divisors is an integer number (3099222).

Almost surely, 2^20415095 is an apocalyptic number.

20415095 is a deficient number, since it is larger than the sum of its proper divisors (4378681).

20415095 is an equidigital number, since it uses as much as digits as its factorization.

20415095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49281.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 20415095 is about 4518.3066518332. The cubic root of 20415095 is about 273.3068195909.

Adding to 20415095 its reverse (59051402), we get a palindrome (79466497).

The spelling of 20415095 in words is "twenty million, four hundred fifteen thousand, ninety-five".