20550524155454 has 8 divisors (see below), whose sum is σ = 31331126991288. Its totient is φ = 10106815158360.

The previous prime is 20550524155439. The next prime is 20550524155463. The reversal of 20550524155454 is 45455142505502.

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

It is a super-2 number, since 2×20550524155454² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20550524155399 and 20550524155408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84223459532 + ... + 84223459775.

It is an arithmetic number, because the mean of its divisors is an integer number (3916390873911).

Almost surely, 2^{20550524155454} is an apocalyptic number.

20550524155454 is a deficient number, since it is larger than the sum of its proper divisors (10780602835834).

20550524155454 is a wasteful number, since it uses less digits than its factorization.

20550524155454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168446919370.

The product of its (nonzero) digits is 4000000, while the sum is 47.

The spelling of 20550524155454 in words is "twenty trillion, five hundred fifty billion, five hundred twenty-four million, one hundred fifty-five thousand, four hundred fifty-four".