55031200771 has 2 divisors, whose sum is σ = 55031200772. Its totient is φ = 55031200770.

The previous prime is 55031200759. The next prime is 55031200823. The reversal of 55031200771 is 17700213055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55031200771 - 2⁵ = 55031200739 is a prime.

It is a super-2 number, since 2×55031200771² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55031200271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27515600385 + 27515600386.

It is an arithmetic number, because the mean of its divisors is an integer number (27515600386).

Almost surely, 2^55031200771 is an apocalyptic number.

55031200771 is a deficient number, since it is larger than the sum of its proper divisors (1).

55031200771 is an equidigital number, since it uses as much as digits as its factorization.

55031200771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7350, while the sum is 31.

The spelling of 55031200771 in words is "fifty-five billion, thirty-one million, two hundred thousand, seven hundred seventy-one".