32553205405551 has 6 divisors (see below), whose sum is σ = 47021296696920. Its totient is φ = 21702136937028.

The previous prime is 32553205405547. The next prime is 32553205405597. The reversal of 32553205405551 is 15550450235523.

It is a happy number.

32553205405551 is a `hidden beast` number, since 3 + 2 + 5 + 5 + 3 + 2 + 0 + 540 + 55 + 51 = 666.

It is not a de Polignac number, because 32553205405551 - 2² = 32553205405547 is a prime.

It is a super-2 number, since 2×32553205405551² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32553205405497 and 32553205405506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32553205405151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1808511411411 + ... + 1808511411428.

It is an arithmetic number, because the mean of its divisors is an integer number (7836882782820).

Almost surely, 2^{32553205405551} is an apocalyptic number.

32553205405551 is a deficient number, since it is larger than the sum of its proper divisors (14468091291369).

32553205405551 is a wasteful number, since it uses less digits than its factorization.

32553205405551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617022822845 (or 3617022822842 counting only the distinct ones).

The product of its (nonzero) digits is 2250000, while the sum is 45.

The spelling of 32553205405551 in words is "thirty-two trillion, five hundred fifty-three billion, two hundred five million, four hundred five thousand, five hundred fifty-one".