55720097286 has 16 divisors (see below), whose sum is σ = 127360222464. Its totient is φ = 15920027784.

The previous prime is 55720097263. The next prime is 55720097291. The reversal of 55720097286 is 68279002755.

55720097286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55720097286² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663334450 + ... + 663334533.

It is an arithmetic number, because the mean of its divisors is an integer number (7960013904).

Almost surely, 2^55720097286 is an apocalyptic number.

55720097286 is an abundant number, since it is smaller than the sum of its proper divisors (71640125178).

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

55720097286 is a wasteful number, since it uses less digits than its factorization.

55720097286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326668995.

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 55720097286 in words is "fifty-five billion, seven hundred twenty million, ninety-seven thousand, two hundred eighty-six".