20025715 has 16 divisors (see below), whose sum is σ = 25420320. Its totient is φ = 15102720.

The previous prime is 20025703. The next prime is 20025727. The reversal of 20025715 is 51752002.

It is an interprime number because it is at equal distance from previous prime (20025703) and next prime (20025727).

It is not a de Polignac number, because 20025715 - 2⁵ = 20025683 is a prime.

It is a super-2 number, since 2×20025715² = 802058522522450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25935 + ... + 26695.

It is an arithmetic number, because the mean of its divisors is an integer number (1588770).

Almost surely, 2^20025715 is an apocalyptic number.

20025715 is a deficient number, since it is larger than the sum of its proper divisors (5394605).

20025715 is a wasteful number, since it uses less digits than its factorization.

20025715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 20025715 is about 4475.0100558546. The cubic root of 20025715 is about 271.5580472507.

Adding to 20025715 its reverse (51752002), we get a palindrome (71777717).

The spelling of 20025715 in words is "twenty million, twenty-five thousand, seven hundred fifteen".