20445735275 has 12 divisors (see below), whose sum is σ = 28974527952. Its totient is φ = 14019932640.

The previous prime is 20445735269. The next prime is 20445735281. The reversal of 20445735275 is 57253754402.

It is an interprime number because it is at equal distance from previous prime (20445735269) and next prime (20445735281).

It is not a de Polignac number, because 20445735275 - 2⁴ = 20445735259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58416212 + ... + 58416561.

It is an arithmetic number, because the mean of its divisors is an integer number (2414543996).

Almost surely, 2^20445735275 is an apocalyptic number.

20445735275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20445735275 is a deficient number, since it is larger than the sum of its proper divisors (8528792677).

20445735275 is a wasteful number, since it uses less digits than its factorization.

20445735275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116832790 (or 116832785 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 44.

The spelling of 20445735275 in words is "twenty billion, four hundred forty-five million, seven hundred thirty-five thousand, two hundred seventy-five".