55272232215 has 24 divisors (see below), whose sum is σ = 95848204608. Its totient is φ = 29465292480.

The previous prime is 55272232199. The next prime is 55272232231. The reversal of 55272232215 is 51223227255.

55272232215 is a `hidden beast` number, since 55 + 272 + 2 + 322 + 15 = 666.

It is an interprime number because it is at equal distance from previous prime (55272232199) and next prime (55272232231).

It is not a de Polignac number, because 55272232215 - 2⁴ = 55272232199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55272232215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173871 + ... + 375200.

It is an arithmetic number, because the mean of its divisors is an integer number (3993675192).

Almost surely, 2^55272232215 is an apocalyptic number.

55272232215 is a deficient number, since it is larger than the sum of its proper divisors (40575972393).

55272232215 is a wasteful number, since it uses less digits than its factorization.

55272232215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551319 (or 551316 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The spelling of 55272232215 in words is "fifty-five billion, two hundred seventy-two million, two hundred thirty-two thousand, two hundred fifteen".