55561341501403 has 24 divisors (see below), whose sum is σ = 58479499601600. Its totient is φ = 52783174160640.

The previous prime is 55561341501397. The next prime is 55561341501481. The reversal of 55561341501403 is 30410514316555.

It is a de Polignac number, because none of the positive numbers 2^k-55561341501403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55561341501403.

It is not an unprimeable number, because it can be changed into a prime (55561341501203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46969198 + ... + 48137596.

Almost surely, 2^{55561341501403} is an apocalyptic number.

55561341501403 is a deficient number, since it is larger than the sum of its proper divisors (2918158100197).

55561341501403 is a wasteful number, since it uses less digits than its factorization.

55561341501403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169059 (or 1169036 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

Adding to 55561341501403 its reverse (30410514316555), we get a palindrome (85971855817958).

The spelling of 55561341501403 in words is "fifty-five trillion, five hundred sixty-one billion, three hundred forty-one million, five hundred one thousand, four hundred three".