55280084 has 12 divisors (see below), whose sum is σ = 98798784. Its totient is φ = 27051864.

The previous prime is 55280077. The next prime is 55280117. The reversal of 55280084 is 48008255.

It is a self number, because there is not a number n which added to its sum of digits gives 55280084.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146834 + ... + 147209.

It is an arithmetic number, because the mean of its divisors is an integer number (8233232).

Almost surely, 2^55280084 is an apocalyptic number.

It is an amenable number.

55280084 is a deficient number, since it is larger than the sum of its proper divisors (43518700).

55280084 is a wasteful number, since it uses less digits than its factorization.

55280084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294094 (or 294092 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 55280084 is about 7435.0577670923. The cubic root of 55280084 is about 380.9396964834.

The spelling of 55280084 in words is "fifty-five million, two hundred eighty thousand, eighty-four".