20201275 has 24 divisors (see below), whose sum is σ = 26784000. Its totient is φ = 15069600.

The previous prime is 20201273. The next prime is 20201303. The reversal of 20201275 is 57210202.

It is not a de Polignac number, because 20201275 - 2¹ = 20201273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (20201273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33426 + ... + 34024.

It is an arithmetic number, because the mean of its divisors is an integer number (1116000).

Almost surely, 2^20201275 is an apocalyptic number.

20201275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20201275 is a deficient number, since it is larger than the sum of its proper divisors (6582725).

20201275 is a wasteful number, since it uses less digits than its factorization.

20201275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 20201275 is about 4494.5828504990. The cubic root of 20201275 is about 272.3492980372.

Adding to 20201275 its reverse (57210202), we get a palindrome (77411477).

It can be divided in two parts, 20 and 201275, that added together give a triangular number (201295 = T₆₃₄).

The spelling of 20201275 in words is "twenty million, two hundred one thousand, two hundred seventy-five".