55400055003 has 32 divisors (see below), whose sum is σ = 83448627200. Its totient is φ = 36315280800.

The previous prime is 55400054993. The next prime is 55400055013. The reversal of 55400055003 is 30055000455.

55400055003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55400054993) and next prime (55400055013).

It is not a de Polignac number, because 55400055003 - 2⁴ = 55400054987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55400055013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8427708 + ... + 8434278.

It is an arithmetic number, because the mean of its divisors is an integer number (2607769600).

Almost surely, 2^55400055003 is an apocalyptic number.

55400055003 is a deficient number, since it is larger than the sum of its proper divisors (28048572197).

55400055003 is a wasteful number, since it uses less digits than its factorization.

55400055003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11760 (or 11754 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

Adding to 55400055003 its reverse (30055000455), we get a palindrome (85455055458).

The spelling of 55400055003 in words is "fifty-five billion, four hundred million, fifty-five thousand, three".