55693277 has 4 divisors (see below), whose sum is σ = 55716480. Its totient is φ = 55670076.

The previous prime is 55693273. The next prime is 55693303. The reversal of 55693277 is 77239655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55693277 - 2² = 55693273 is a prime.

It is a super-2 number, since 2×55693277² = 6203482205997458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55693271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7523 + ... + 12960.

It is an arithmetic number, because the mean of its divisors is an integer number (13929120).

Almost surely, 2^55693277 is an apocalyptic number.

It is an amenable number.

55693277 is a deficient number, since it is larger than the sum of its proper divisors (23203).

55693277 is a wasteful number, since it uses less digits than its factorization.

55693277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23202.

The product of its digits is 396900, while the sum is 44.

The square root of 55693277 is about 7462.7928418254. The cubic root of 55693277 is about 381.8864573964.

The spelling of 55693277 in words is "fifty-five million, six hundred ninety-three thousand, two hundred seventy-seven".