55027278 has 24 divisors (see below), whose sum is σ = 119618928. Its totient is φ = 18281952.

The previous prime is 55027277. The next prime is 55027309. The reversal of 55027278 is 87272055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55027277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 751 + ... + 10517.

It is an arithmetic number, because the mean of its divisors is an integer number (4984122).

Almost surely, 2^55027278 is an apocalyptic number.

55027278 is an abundant number, since it is smaller than the sum of its proper divisors (64591650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55027278 is a wasteful number, since it uses less digits than its factorization.

55027278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10088 (or 10085 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 55027278 is about 7418.0373415075. The cubic root of 55027278 is about 380.3581065562.

The spelling of 55027278 in words is "fifty-five million, twenty-seven thousand, two hundred seventy-eight".