55279310 has 8 divisors (see below), whose sum is σ = 99502776. Its totient is φ = 22111720.

The previous prime is 55279277. The next prime is 55279313. The reversal of 55279310 is 1397255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55279310² = 6111604228152200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55279313) 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, 2763956 + ... + 2763975.

It is an arithmetic number, because the mean of its divisors is an integer number (12437847).

Almost surely, 2^55279310 is an apocalyptic number.

55279310 is a deficient number, since it is larger than the sum of its proper divisors (44223466).

55279310 is a wasteful number, since it uses less digits than its factorization.

55279310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527938.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 55279310 is about 7435.0057162049. The cubic root of 55279310 is about 380.9379185755.

The spelling of 55279310 in words is "fifty-five million, two hundred seventy-nine thousand, three hundred ten".