55125987803 has 4 divisors (see below), whose sum is σ = 55173064968. Its totient is φ = 55078910640.

The previous prime is 55125987793. The next prime is 55125987811. The reversal of 55125987803 is 30878952155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30878952155 = 5 ⋅6175790431.

It is a cyclic number.

It is not a de Polignac number, because 55125987803 - 2¹² = 55125983707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55125987853) 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, 23536826 + ... + 23539167.

It is an arithmetic number, because the mean of its divisors is an integer number (13793266242).

Almost surely, 2^55125987803 is an apocalyptic number.

55125987803 is a deficient number, since it is larger than the sum of its proper divisors (47077165).

55125987803 is a wasteful number, since it uses less digits than its factorization.

55125987803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47077164.

The product of its (nonzero) digits is 3024000, while the sum is 53.

The spelling of 55125987803 in words is "fifty-five billion, one hundred twenty-five million, nine hundred eighty-seven thousand, eight hundred three".