55509636459 has 8 divisors (see below), whose sum is σ = 74079954432. Its totient is φ = 36972871400.

The previous prime is 55509636449. The next prime is 55509636463. The reversal of 55509636459 is 95463690555.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55509636459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55509636399 and 55509636408.

It is not an unprimeable number, because it can be changed into a prime (55509636449) 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, 8384367 + ... + 8390984.

It is an arithmetic number, because the mean of its divisors is an integer number (9259994304).

Almost surely, 2^55509636459 is an apocalyptic number.

55509636459 is a deficient number, since it is larger than the sum of its proper divisors (18570317973).

55509636459 is a wasteful number, since it uses less digits than its factorization.

55509636459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16776457.

The product of its (nonzero) digits is 21870000, while the sum is 57.

The spelling of 55509636459 in words is "fifty-five billion, five hundred nine million, six hundred thirty-six thousand, four hundred fifty-nine".