55646522503 has 16 divisors (see below), whose sum is σ = 67483809792. Its totient is φ = 45190044000.

The previous prime is 55646522497. The next prime is 55646522507. The reversal of 55646522503 is 30522564655.

55646522503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55646522503 - 2²¹ = 55644425351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55646522503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55646522507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6271963 + ... + 6280828.

It is an arithmetic number, because the mean of its divisors is an integer number (4217738112).

Almost surely, 2^55646522503 is an apocalyptic number.

55646522503 is a deficient number, since it is larger than the sum of its proper divisors (11837287289).

55646522503 is a wasteful number, since it uses less digits than its factorization.

55646522503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12552846.

The product of its (nonzero) digits is 1080000, while the sum is 43.

The spelling of 55646522503 in words is "fifty-five billion, six hundred forty-six million, five hundred twenty-two thousand, five hundred three".