20514669 has 16 divisors (see below), whose sum is σ = 31703040. Its totient is φ = 11556720.

The previous prime is 20514619. The next prime is 20514677. The reversal of 20514669 is 96641502.

It is not a de Polignac number, because 20514669 - 2⁷ = 20514541 is a prime.

It is a super-2 number, since 2×20514669² = 841703288359122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5389 + ... + 8370.

It is an arithmetic number, because the mean of its divisors is an integer number (1981440).

Almost surely, 2^20514669 is an apocalyptic number.

It is an amenable number.

20514669 is a deficient number, since it is larger than the sum of its proper divisors (11188371).

20514669 is a wasteful number, since it uses less digits than its factorization.

20514669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13840.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 20514669 is about 4529.3121994404. The cubic root of 20514669 is about 273.7504476547.

The spelling of 20514669 in words is "twenty million, five hundred fourteen thousand, six hundred sixty-nine".