55501512432331 has 8 divisors (see below), whose sum is σ = 63430814603520. Its totient is φ = 47572338931368.

The previous prime is 55501512432319. The next prime is 55501512432341. The reversal of 55501512432331 is 13323421510555.

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 55501512432331 - 2⁵ = 55501512432299 is a prime.

It is a super-2 number, since 2×55501512432331² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55501512432341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31241461 + ... + 32970166.

It is an arithmetic number, because the mean of its divisors is an integer number (7928851825440).

Almost surely, 2^{55501512432331} is an apocalyptic number.

55501512432331 is a deficient number, since it is larger than the sum of its proper divisors (7929302171189).

55501512432331 is a wasteful number, since it uses less digits than its factorization.

55501512432331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64335113.

The product of its (nonzero) digits is 270000, while the sum is 40.

Adding to 55501512432331 its reverse (13323421510555), we get a palindrome (68824933942886).

The spelling of 55501512432331 in words is "fifty-five trillion, five hundred one billion, five hundred twelve million, four hundred thirty-two thousand, three hundred thirty-one".