55332277 has 32 divisors (see below), whose sum is σ = 74962944. Its totient is φ = 39441600.

The previous prime is 55332259. The next prime is 55332281. The reversal of 55332277 is 77223355.

It is a de Polignac number, because none of the positive numbers 2^k-55332277 is a prime.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55332257) 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, 167002 + ... + 167332.

It is an arithmetic number, because the mean of its divisors is an integer number (2342592).

Almost surely, 2^55332277 is an apocalyptic number.

It is an amenable number.

55332277 is a deficient number, since it is larger than the sum of its proper divisors (19630667).

55332277 is a wasteful number, since it uses less digits than its factorization.

55332277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529.

The product of its digits is 44100, while the sum is 34.

The square root of 55332277 is about 7438.5668646588. The cubic root of 55332277 is about 381.0595475525.

The spelling of 55332277 in words is "fifty-five million, three hundred thirty-two thousand, two hundred seventy-seven".