20554313529 has 8 divisors (see below), whose sum is σ = 27573885472. Its totient is φ = 13618808640.

The previous prime is 20554313497. The next prime is 20554313531. The reversal of 20554313529 is 92531345502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20554313529 - 2⁵ = 20554313497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20554313569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21016192 + ... + 21017169.

It is an arithmetic number, because the mean of its divisors is an integer number (3446735684).

Almost surely, 2^20554313529 is an apocalyptic number.

It is an amenable number.

20554313529 is a deficient number, since it is larger than the sum of its proper divisors (7019571943).

20554313529 is a wasteful number, since it uses less digits than its factorization.

20554313529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42033527.

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 20554313529 in words is "twenty billion, five hundred fifty-four million, three hundred thirteen thousand, five hundred twenty-nine".