55213631255 has 4 divisors (see below), whose sum is σ = 66256357512. Its totient is φ = 44170905000.

The previous prime is 55213631243. The next prime is 55213631279.

55213631255 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55213631255 - 2¹² = 55213627159 is a prime.

It is a super-2 number, since 2×55213631255² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5521363121 + ... + 5521363130.

It is an arithmetic number, because the mean of its divisors is an integer number (16564089378).

Almost surely, 2^55213631255 is an apocalyptic number.

55213631255 is a deficient number, since it is larger than the sum of its proper divisors (11042726257).

55213631255 is a wasteful number, since it uses less digits than its factorization.

55213631255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11042726256.

The product of its digits is 135000, while the sum is 38.

The spelling of 55213631255 in words is "fifty-five billion, two hundred thirteen million, six hundred thirty-one thousand, two hundred fifty-five".