20095615 has 12 divisors (see below), whose sum is σ = 25618536. Its totient is φ = 15129728.

The previous prime is 20095613. The next prime is 20095619. The reversal of 20095615 is 51659002.

It is not a de Polignac number, because 20095615 - 2¹ = 20095613 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 (20095613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5509 + ... + 8398.

It is an arithmetic number, because the mean of its divisors is an integer number (2134878).

Almost surely, 2^20095615 is an apocalyptic number.

20095615 is a deficient number, since it is larger than the sum of its proper divisors (5522921).

20095615 is a wasteful number, since it uses less digits than its factorization.

20095615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13946 (or 13929 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 20095615 is about 4482.8132907807. The cubic root of 20095615 is about 271.8736392234.

The spelling of 20095615 in words is "twenty million, ninety-five thousand, six hundred fifteen".