55120525311 has 8 divisors (see below), whose sum is σ = 73534848304. Its totient is φ = 36726609600.

The previous prime is 55120525279. The next prime is 55120525321. The reversal of 55120525311 is 11352502155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55120525311 - 2⁵ = 55120525279 is a prime.

It is a super-3 number, since 3×55120525311³ (a number of 33 digits) contains 333 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 (55120525321) 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, 5095516 + ... + 5106321.

It is an arithmetic number, because the mean of its divisors is an integer number (9191856038).

Almost surely, 2^55120525311 is an apocalyptic number.

55120525311 is a deficient number, since it is larger than the sum of its proper divisors (18414322993).

55120525311 is a wasteful number, since it uses less digits than its factorization.

55120525311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10203641.

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 55120525311 in words is "fifty-five billion, one hundred twenty million, five hundred twenty-five thousand, three hundred eleven".