55938801819 has 8 divisors (see below), whose sum is σ = 74587640400. Its totient is φ = 37291248896.

The previous prime is 55938801817. The next prime is 55938801827. The reversal of 55938801819 is 91810883955.

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

It is a cyclic number.

It is not a de Polignac number, because 55938801819 - 2¹ = 55938801817 is a prime.

It is a super-2 number, since 2×55938801819² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55938801817) 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, 214842 + ... + 397535.

It is an arithmetic number, because the mean of its divisors is an integer number (9323455050).

Almost surely, 2^55938801819 is an apocalyptic number.

55938801819 is a deficient number, since it is larger than the sum of its proper divisors (18648838581).

55938801819 is a wasteful number, since it uses less digits than its factorization.

55938801819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642829.

The product of its (nonzero) digits is 3110400, while the sum is 57.

The spelling of 55938801819 in words is "fifty-five billion, nine hundred thirty-eight million, eight hundred one thousand, eight hundred nineteen".