55802091071 has 4 divisors (see below), whose sum is σ = 56144435352. Its totient is φ = 55459746792.

The previous prime is 55802091029. The next prime is 55802091113. The reversal of 55802091071 is 17019020855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17019020855 = 5 ⋅3403804171.

It is an interprime number because it is at equal distance from previous prime (55802091029) and next prime (55802091113).

It is a cyclic number.

It is not a de Polignac number, because 55802091071 - 2¹⁴ = 55802074687 is a prime.

It is a super-2 number, since 2×55802091071² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55802091011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171171896 + ... + 171172221.

It is an arithmetic number, because the mean of its divisors is an integer number (14036108838).

Almost surely, 2^55802091071 is an apocalyptic number.

55802091071 is a deficient number, since it is larger than the sum of its proper divisors (342344281).

55802091071 is a wasteful number, since it uses less digits than its factorization.

55802091071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342344280.

The product of its (nonzero) digits is 25200, while the sum is 38.

The spelling of 55802091071 in words is "fifty-five billion, eight hundred two million, ninety-one thousand, seventy-one".