20552747119 has 4 divisors (see below), whose sum is σ = 20554599760. Its totient is φ = 20550894480.

The previous prime is 20552747101. The next prime is 20552747147. The reversal of 20552747119 is 91174725502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20552747119 is a prime.

It is a super-2 number, since 2×20552747119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552747419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909579 + ... + 931900.

It is an arithmetic number, because the mean of its divisors is an integer number (5138649940).

Almost surely, 2^20552747119 is an apocalyptic number.

20552747119 is a deficient number, since it is larger than the sum of its proper divisors (1852641).

20552747119 is a wasteful number, since it uses less digits than its factorization.

20552747119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852640.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 20552747119 in words is "twenty billion, five hundred fifty-two million, seven hundred forty-seven thousand, one hundred nineteen".