55197820334 has 32 divisors (see below), whose sum is σ = 85509236736. Its totient is φ = 26703349920.

The previous prime is 55197820333. The next prime is 55197820351. The reversal of 55197820334 is 43302879155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55197820331) 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, 29884199 + ... + 29886045.

It is an arithmetic number, because the mean of its divisors is an integer number (2672163648).

Almost surely, 2^55197820334 is an apocalyptic number.

55197820334 is a deficient number, since it is larger than the sum of its proper divisors (30311416402).

55197820334 is a wasteful number, since it uses less digits than its factorization.

55197820334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3920.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 55197820334 in words is "fifty-five billion, one hundred ninety-seven million, eight hundred twenty thousand, three hundred thirty-four".