55001031011 has 2 divisors, whose sum is σ = 55001031012. Its totient is φ = 55001031010.

The previous prime is 55001030999. The next prime is 55001031049. The reversal of 55001031011 is 11013010055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55001031011 - 2³⁴ = 37821161827 is a prime.

It is a super-2 number, since 2×55001031011² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55001231011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500515505 + 27500515506.

It is an arithmetic number, because the mean of its divisors is an integer number (27500515506).

Almost surely, 2^55001031011 is an apocalyptic number.

55001031011 is a deficient number, since it is larger than the sum of its proper divisors (1).

55001031011 is an equidigital number, since it uses as much as digits as its factorization.

55001031011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75, while the sum is 17.

Adding to 55001031011 its reverse (11013010055), we get a palindrome (66014041066).

The spelling of 55001031011 in words is "fifty-five billion, one million, thirty-one thousand, eleven".