55231250001 has 16 divisors (see below), whose sum is σ = 74613616896. Its totient is φ = 36335866896.

The previous prime is 55231249999. The next prime is 55231250047. The reversal of 55231250001 is 10005213255.

It is a happy number.

It is not a de Polignac number, because 55231250001 - 2¹ = 55231249999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55231250051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94266 + ... + 345468.

It is an arithmetic number, because the mean of its divisors is an integer number (4663351056).

Almost surely, 2^55231250001 is an apocalyptic number.

It is an amenable number.

55231250001 is a deficient number, since it is larger than the sum of its proper divisors (19382366895).

55231250001 is a wasteful number, since it uses less digits than its factorization.

55231250001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252172.

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 55231250001 its reverse (10005213255), we get a palindrome (65236463256).

The spelling of 55231250001 in words is "fifty-five billion, two hundred thirty-one million, two hundred fifty thousand, one".