55097078 has 4 divisors (see below), whose sum is σ = 82645620. Its totient is φ = 27548538.

The previous prime is 55097059. The next prime is 55097087. The reversal of 55097078 is 87079055.

It is a happy number.

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

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, 13774268 + ... + 13774271.

It is an arithmetic number, because the mean of its divisors is an integer number (20661405).

Almost surely, 2^55097078 is an apocalyptic number.

55097078 is a deficient number, since it is larger than the sum of its proper divisors (27548542).

55097078 is a wasteful number, since it uses less digits than its factorization.

55097078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27548541.

The product of its (nonzero) digits is 88200, while the sum is 41.

The square root of 55097078 is about 7422.7405989971. The cubic root of 55097078 is about 380.5188618473.

The spelling of 55097078 in words is "fifty-five million, ninety-seven thousand, seventy-eight".