55859297340 has 288 divisors, whose sum is σ = 210159339264. Its totient is φ = 10924247040.

The previous prime is 55859297321. The next prime is 55859297353. The reversal of 55859297340 is 4379295855.

It is a happy number.

It is a super-2 number, since 2×55859297340² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 498979 + ... + 600581.

It is an arithmetic number, because the mean of its divisors is an integer number (729719928).

Almost surely, 2^55859297340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55859297340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105079669632).

55859297340 is an abundant number, since it is smaller than the sum of its proper divisors (154300041924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55859297340 is a wasteful number, since it uses less digits than its factorization.

55859297340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101657 (or 101648 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 57.

The spelling of 55859297340 in words is "fifty-five billion, eight hundred fifty-nine million, two hundred ninety-seven thousand, three hundred forty".