55831708351538 has 16 divisors (see below), whose sum is σ = 95711721042240. Its totient is φ = 23927819755056.

The previous prime is 55831708351537. The next prime is 55831708351541. The reversal of 55831708351538 is 83515380713855.

It is not an unprimeable number, because it can be changed into a prime (55831708351537) 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, 2001848 + ... + 10755036.

It is an arithmetic number, because the mean of its divisors is an integer number (5981982565140).

Almost surely, 2^{55831708351538} is an apocalyptic number.

55831708351538 is a deficient number, since it is larger than the sum of its proper divisors (39880012690702).

55831708351538 is a wasteful number, since it uses less digits than its factorization.

55831708351538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9208801.

The product of its (nonzero) digits is 60480000, while the sum is 62.

The spelling of 55831708351538 in words is "fifty-five trillion, eight hundred thirty-one billion, seven hundred eight million, three hundred fifty-one thousand, five hundred thirty-eight".