20570882575 has 6 divisors (see below), whose sum is σ = 25507894424. Its totient is φ = 16456706040.

The previous prime is 20570882561. The next prime is 20570882581. The reversal of 20570882575 is 57528807502.

It is not a de Polignac number, because 20570882575 - 2⁵ = 20570882543 is a prime.

It is a super-2 number, since 2×20570882575² (a number of 21 digits) contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 411417627 + ... + 411417676.

Almost surely, 2^20570882575 is an apocalyptic number.

20570882575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20570882575 is a deficient number, since it is larger than the sum of its proper divisors (4937011849).

20570882575 is an equidigital number, since it uses as much as digits as its factorization.

20570882575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822835313 (or 822835308 counting only the distinct ones).

The product of its (nonzero) digits is 1568000, while the sum is 49.

The spelling of 20570882575 in words is "twenty billion, five hundred seventy million, eight hundred eighty-two thousand, five hundred seventy-five".