55727231553 has 192 divisors, whose sum is σ = 106593177600. Its totient is φ = 28360316160.

The previous prime is 55727231543. The next prime is 55727231557. The reversal of 55727231553 is 35513272755.

55727231553 is a `hidden beast` number, since 5 + 5 + 72 + 7 + 23 + 1 + 553 = 666.

It is not a de Polignac number, because 55727231553 - 2⁴ = 55727231537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55727231499 and 55727231508.

It is not an unprimeable number, because it can be changed into a prime (55727231557) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 45342943 + ... + 45344171.

It is an arithmetic number, because the mean of its divisors is an integer number (555172800).

Almost surely, 2^55727231553 is an apocalyptic number.

It is an amenable number.

55727231553 is a deficient number, since it is larger than the sum of its proper divisors (50865946047).

55727231553 is a wasteful number, since it uses less digits than its factorization.

55727231553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354 (or 1342 counting only the distinct ones).

The product of its digits is 1102500, while the sum is 45.

The spelling of 55727231553 in words is "fifty-five billion, seven hundred twenty-seven million, two hundred thirty-one thousand, five hundred fifty-three".