55097239944822 has 64 divisors (see below), whose sum is σ = 121671119831040. Its totient is φ = 16555510144800.

The previous prime is 55097239944809. The next prime is 55097239944823. The reversal of 55097239944822 is 22844993279055.

It is a super-2 number, since 2×55097239944822² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55097239944823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54508204 + ... + 55509807.

It is an arithmetic number, because the mean of its divisors is an integer number (1901111247360).

Almost surely, 2^{55097239944822} is an apocalyptic number.

55097239944822 is an abundant number, since it is smaller than the sum of its proper divisors (66573879886218).

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

55097239944822 is a wasteful number, since it uses less digits than its factorization.

55097239944822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110018249.

The product of its (nonzero) digits is 391910400, while the sum is 69.

The spelling of 55097239944822 in words is "fifty-five trillion, ninety-seven billion, two hundred thirty-nine million, nine hundred forty-four thousand, eight hundred twenty-two".