55836278 has 4 divisors (see below), whose sum is σ = 83754420. Its totient is φ = 27918138.

The previous prime is 55836257. The next prime is 55836299. The reversal of 55836278 is 87263855.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55836257) and next prime (55836299).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13959068 + ... + 13959071.

It is an arithmetic number, because the mean of its divisors is an integer number (20938605).

Almost surely, 2^55836278 is an apocalyptic number.

55836278 is a deficient number, since it is larger than the sum of its proper divisors (27918142).

55836278 is a wasteful number, since it uses less digits than its factorization.

55836278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27918141.

The product of its digits is 403200, while the sum is 44.

The square root of 55836278 is about 7472.3676301424. The cubic root of 55836278 is about 382.2130286621.

The spelling of 55836278 in words is "fifty-five million, eight hundred thirty-six thousand, two hundred seventy-eight".