20075575 has 24 divisors (see below), whose sum is σ = 27026048. Its totient is φ = 14705280.

The previous prime is 20075567. The next prime is 20075591. The reversal of 20075575 is 57557002.

It is not a de Polignac number, because 20075575 - 2³ = 20075567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72337 + ... + 72613.

Almost surely, 2^20075575 is an apocalyptic number.

20075575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20075575 is a deficient number, since it is larger than the sum of its proper divisors (6950473).

20075575 is a wasteful number, since it uses less digits than its factorization.

20075575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 20075575 is about 4480.5775297388. The cubic root of 20075575 is about 271.7832354243.

It can be divided in two parts, 2007 and 5575, that multiplied together give a square (11189025 = 3345²).

The spelling of 20075575 in words is "twenty million, seventy-five thousand, five hundred seventy-five".