55078803 has 24 divisors (see below), whose sum is σ = 85962240. Its totient is φ = 33782400.

The previous prime is 55078781. The next prime is 55078811. The reversal of 55078803 is 30887055.

It is a happy number.

It is not a de Polignac number, because 55078803 - 2⁹ = 55078291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55078823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47278 + ... + 48428.

It is an arithmetic number, because the mean of its divisors is an integer number (3581760).

Almost surely, 2^55078803 is an apocalyptic number.

55078803 is a deficient number, since it is larger than the sum of its proper divisors (30883437).

55078803 is a wasteful number, since it uses less digits than its factorization.

55078803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 55078803 is about 7421.5094825783. The cubic root of 55078803 is about 380.4767861060.

The spelling of 55078803 in words is "fifty-five million, seventy-eight thousand, eight hundred three".