20455522306530 has 32 divisors (see below), whose sum is σ = 49347622738944. Its totient is φ = 5426542703616.

The previous prime is 20455522306517. The next prime is 20455522306537. The reversal of 20455522306530 is 3560322555402.

It is a super-2 number, since 2×20455522306530² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20455522306537) 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, 1766446914 + ... + 1766458493.

It is an arithmetic number, because the mean of its divisors is an integer number (1542113210592).

Almost surely, 2^{20455522306530} is an apocalyptic number.

20455522306530 is an abundant number, since it is smaller than the sum of its proper divisors (28892100432414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20455522306530 is a wasteful number, since it uses less digits than its factorization.

20455522306530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3532905610.

The product of its (nonzero) digits is 1080000, while the sum is 42.

The spelling of 20455522306530 in words is "twenty trillion, four hundred fifty-five billion, five hundred twenty-two million, three hundred six thousand, five hundred thirty".