20555675 has 24 divisors (see below), whose sum is σ = 30402816. Its totient is φ = 13479840.

The previous prime is 20555651. The next prime is 20555681. The reversal of 20555675 is 57655502.

It is not a de Polignac number, because 20555675 - 2¹² = 20551579 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 1472 + ... + 6578.

It is an arithmetic number, because the mean of its divisors is an integer number (1266784).

Almost surely, 2^20555675 is an apocalyptic number.

20555675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20555675 is a deficient number, since it is larger than the sum of its proper divisors (9847141).

20555675 is a wasteful number, since it uses less digits than its factorization.

20555675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147 (or 5142 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 20555675 is about 4533.8366754880. The cubic root of 20555675 is about 273.9327227509.

The spelling of 20555675 in words is "twenty million, five hundred fifty-five thousand, six hundred seventy-five".