21575075083 has 2 divisors, whose sum is σ = 21575075084. Its totient is φ = 21575075082.

The previous prime is 21575075077. The next prime is 21575075113. The reversal of 21575075083 is 38057057512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21575075083 - 2⁵ = 21575075051 is a prime.

It is not a weakly prime, because it can be changed into another prime (21575075183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10787537541 + 10787537542.

It is an arithmetic number, because the mean of its divisors is an integer number (10787537542).

Almost surely, 2^21575075083 is an apocalyptic number.

21575075083 is a deficient number, since it is larger than the sum of its proper divisors (1).

21575075083 is an equidigital number, since it uses as much as digits as its factorization.

21575075083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 21575075083 in words is "twenty-one billion, five hundred seventy-five million, seventy-five thousand, eighty-three".