20514975 has 48 divisors (see below), whose sum is σ = 37310112. Its totient is φ = 9884160.

The previous prime is 20514947. The next prime is 20514979. The reversal of 20514975 is 57941502.

It is not a de Polignac number, because 20514975 - 2⁵ = 20514943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514979) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51477 + ... + 51873.

It is an arithmetic number, because the mean of its divisors is an integer number (777294).

Almost surely, 2^20514975 is an apocalyptic number.

20514975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20514975 is a deficient number, since it is larger than the sum of its proper divisors (16795137).

20514975 is a wasteful number, since it uses less digits than its factorization.

20514975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 20514975 is about 4529.3459792778. The cubic root of 20514975 is about 273.7518087493.

It can be divided in two parts, 2051497 and 5, that added together give a palindrome (2051502).

The spelling of 20514975 in words is "twenty million, five hundred fourteen thousand, nine hundred seventy-five".