55775250803 has 4 divisors (see below), whose sum is σ = 56182369560. Its totient is φ = 55368132048.

The previous prime is 55775250799. The next prime is 55775250821. The reversal of 55775250803 is 30805257755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30805257755 = 5 ⋅6161051551.

It is a cyclic number.

It is not a de Polignac number, because 55775250803 - 2² = 55775250799 is a prime.

It is a super-2 number, since 2×55775250803² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55775250833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203559173 + ... + 203559446.

It is an arithmetic number, because the mean of its divisors is an integer number (14045592390).

Almost surely, 2^55775250803 is an apocalyptic number.

55775250803 is a deficient number, since it is larger than the sum of its proper divisors (407118757).

55775250803 is a wasteful number, since it uses less digits than its factorization.

55775250803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407118756.

The product of its (nonzero) digits is 1470000, while the sum is 47.

The spelling of 55775250803 in words is "fifty-five billion, seven hundred seventy-five million, two hundred fifty thousand, eight hundred three".