55197601893 has 48 divisors (see below), whose sum is σ = 96353467392. Its totient is φ = 29779488000.

The previous prime is 55197601891. The next prime is 55197601913. The reversal of 55197601893 is 39810679155.

55197601893 is a `hidden beast` number, since 551 + 9 + 7 + 6 + 0 + 1 + 89 + 3 = 666.

It is not a de Polignac number, because 55197601893 - 2¹ = 55197601891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55197601891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 264598 + ... + 424743.

It is an arithmetic number, because the mean of its divisors is an integer number (2007363904).

Almost surely, 2^55197601893 is an apocalyptic number.

It is an amenable number.

55197601893 is a deficient number, since it is larger than the sum of its proper divisors (41155865499).

55197601893 is a wasteful number, since it uses less digits than its factorization.

55197601893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689426 (or 689423 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 54.

The spelling of 55197601893 in words is "fifty-five billion, one hundred ninety-seven million, six hundred one thousand, eight hundred ninety-three".