55126032521 has 8 divisors (see below), whose sum is σ = 63033030720. Its totient is φ = 47226997008.

The previous prime is 55126032499. The next prime is 55126032553. The reversal of 55126032521 is 12523062155.

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 55126032521 - 2¹⁴ = 55126016137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55126032571) 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, 1975826 + ... + 2003531.

It is an arithmetic number, because the mean of its divisors is an integer number (7879128840).

Almost surely, 2^55126032521 is an apocalyptic number.

It is an amenable number.

55126032521 is a deficient number, since it is larger than the sum of its proper divisors (7906998199).

55126032521 is a wasteful number, since it uses less digits than its factorization.

55126032521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981343.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 55126032521 its reverse (12523062155), we get a palindrome (67649094676).

The spelling of 55126032521 in words is "fifty-five billion, one hundred twenty-six million, thirty-two thousand, five hundred twenty-one".