55270678 has 4 divisors (see below), whose sum is σ = 82906020. Its totient is φ = 27635338.

The previous prime is 55270661. The next prime is 55270693. The reversal of 55270678 is 87607255.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 55270678.

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, 13817668 + ... + 13817671.

It is an arithmetic number, because the mean of its divisors is an integer number (20726505).

Almost surely, 2^55270678 is an apocalyptic number.

55270678 is a deficient number, since it is larger than the sum of its proper divisors (27635342).

55270678 is a wasteful number, since it uses less digits than its factorization.

55270678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27635341.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 55270678 is about 7434.4251963417. The cubic root of 55270678 is about 380.9180894128.

The spelling of 55270678 in words is "fifty-five million, two hundred seventy thousand, six hundred seventy-eight".