55505525503 has 8 divisors (see below), whose sum is σ = 56381128272. Its totient is φ = 54636531456.

The previous prime is 55505525489. The next prime is 55505525507. The reversal of 55505525503 is 30552550555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55505525503 - 2¹³ = 55505517311 is a prime.

It is a super-2 number, since 2×55505525503² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505525507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635250 + ... + 1668847.

It is an arithmetic number, because the mean of its divisors is an integer number (7047641034).

Almost surely, 2^55505525503 is an apocalyptic number.

55505525503 is a deficient number, since it is larger than the sum of its proper divisors (875602769).

55505525503 is a wasteful number, since it uses less digits than its factorization.

55505525503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304361.

The product of its (nonzero) digits is 468750, while the sum is 40.

The spelling of 55505525503 in words is "fifty-five billion, five hundred five million, five hundred twenty-five thousand, five hundred three".