55097197326 has 32 divisors (see below), whose sum is σ = 126387840000. Its totient is φ = 17773288920.

The previous prime is 55097197313. The next prime is 55097197327. The reversal of 55097197326 is 62379179055.

55097197326 is a `hidden beast` number, since 550 + 9 + 7 + 19 + 73 + 2 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55097197327) 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, 16455076 + ... + 16458423.

It is an arithmetic number, because the mean of its divisors is an integer number (3949620000).

Almost surely, 2^55097197326 is an apocalyptic number.

55097197326 is an abundant number, since it is smaller than the sum of its proper divisors (71290642674).

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

55097197326 is a wasteful number, since it uses less digits than its factorization.

55097197326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32913541 (or 32913535 counting only the distinct ones).

The product of its (nonzero) digits is 3572100, while the sum is 54.

The spelling of 55097197326 in words is "fifty-five billion, ninety-seven million, one hundred ninety-seven thousand, three hundred twenty-six".