55563351111 has 8 divisors (see below), whose sum is σ = 82316075760. Its totient is φ = 37042234056.

The previous prime is 55563351097. The next prime is 55563351127. The reversal of 55563351111 is 11115336555.

55563351111 is a `hidden beast` number, since 5 + 5 + 5 + 633 + 5 + 1 + 1 + 11 = 666.

It is not a de Polignac number, because 55563351111 - 2⁶ = 55563351047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55563356111) 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, 1028950920 + ... + 1028950973.

It is an arithmetic number, because the mean of its divisors is an integer number (10289509470).

Almost surely, 2^55563351111 is an apocalyptic number.

55563351111 is a deficient number, since it is larger than the sum of its proper divisors (26752724649).

55563351111 is a wasteful number, since it uses less digits than its factorization.

55563351111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057901902 (or 2057901896 counting only the distinct ones).

The product of its digits is 33750, while the sum is 36.

Adding to 55563351111 its reverse (11115336555), we get a palindrome (66678687666).

The spelling of 55563351111 in words is "fifty-five billion, five hundred sixty-three million, three hundred fifty-one thousand, one hundred eleven".