55532540231 has 16 divisors (see below), whose sum is σ = 64243196928. Its totient is φ = 47018436000.

The previous prime is 55532540183. The next prime is 55532540257. The reversal of 55532540231 is 13204523555.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55532540231 is a prime.

It is a super-2 number, since 2×55532540231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55532540191 and 55532540200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55532540281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213596 + ... + 395838.

It is an arithmetic number, because the mean of its divisors is an integer number (4015199808).

Almost surely, 2^55532540231 is an apocalyptic number.

55532540231 is a deficient number, since it is larger than the sum of its proper divisors (8710656697).

55532540231 is a wasteful number, since it uses less digits than its factorization.

55532540231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182782.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 55532540231 in words is "fifty-five billion, five hundred thirty-two million, five hundred forty thousand, two hundred thirty-one".