55829156391 has 16 divisors (see below), whose sum is σ = 87575148000. Its totient is φ = 35030058624.

The previous prime is 55829156351. The next prime is 55829156413. The reversal of 55829156391 is 19365192855.

55829156391 is a `hidden beast` number, since 5 + 58 + 29 + 1 + 563 + 9 + 1 = 666.

It is not a de Polignac number, because 55829156391 - 2¹⁷ = 55829025319 is a prime.

It is a super-2 number, since 2×55829156391² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55829156351) 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, 60815616 + ... + 60816533.

It is an arithmetic number, because the mean of its divisors is an integer number (5473446750).

Almost surely, 2^55829156391 is an apocalyptic number.

55829156391 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

55829156391 is a deficient number, since it is larger than the sum of its proper divisors (31745991609).

55829156391 is a wasteful number, since it uses less digits than its factorization.

55829156391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121632175 (or 121632169 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 54.

The spelling of 55829156391 in words is "fifty-five billion, eight hundred twenty-nine million, one hundred fifty-six thousand, three hundred ninety-one".