20155353 has 16 divisors (see below), whose sum is σ = 28604736. Its totient is φ = 12579840.

The previous prime is 20155327. The next prime is 20155357. The reversal of 20155353 is 35355102.

It is not a de Polignac number, because 20155353 - 2⁵ = 20155321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20155357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9825 + ... + 11697.

It is an arithmetic number, because the mean of its divisors is an integer number (1787796).

Almost surely, 2^20155353 is an apocalyptic number.

It is an amenable number.

20155353 is a deficient number, since it is larger than the sum of its proper divisors (8449383).

20155353 is a wasteful number, since it uses less digits than its factorization.

20155353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 20155353 is about 4489.4713497248. The cubic root of 20155353 is about 272.1427712481.

The spelling of 20155353 in words is "twenty million, one hundred fifty-five thousand, three hundred fifty-three".