55272165623 has 4 divisors (see below), whose sum is σ = 55272902640. Its totient is φ = 55271428608.

The previous prime is 55272165607. The next prime is 55272165649. The reversal of 55272165623 is 32656127255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32656127255 = 5 ⋅6531225451.

It is a cyclic number.

It is not a de Polignac number, because 55272165623 - 2⁴ = 55272165607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55272165673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241403 + ... + 410876.

It is an arithmetic number, because the mean of its divisors is an integer number (13818225660).

Almost surely, 2^55272165623 is an apocalyptic number.

55272165623 is a deficient number, since it is larger than the sum of its proper divisors (737017).

55272165623 is an equidigital number, since it uses as much as digits as its factorization.

55272165623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737016.

The product of its digits is 756000, while the sum is 44.

The spelling of 55272165623 in words is "fifty-five billion, two hundred seventy-two million, one hundred sixty-five thousand, six hundred twenty-three".