55443512245 has 24 divisors (see below), whose sum is σ = 75489523200. Its totient is φ = 39021813600.

The previous prime is 55443512239. The next prime is 55443512251. The reversal of 55443512245 is 54221534455.

It is an interprime number because it is at equal distance from previous prime (55443512239) and next prime (55443512251).

It is not a de Polignac number, because 55443512245 - 2²⁷ = 55309294517 is a prime.

It is a super-2 number, since 2×55443512245² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55443512198 and 55443512207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1459345 + ... + 1496854.

It is an arithmetic number, because the mean of its divisors is an integer number (3145396800).

Almost surely, 2^55443512245 is an apocalyptic number.

55443512245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55443512245 is a deficient number, since it is larger than the sum of its proper divisors (20046010955).

55443512245 is a wasteful number, since it uses less digits than its factorization.

55443512245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956257 (or 2956246 counting only the distinct ones).

The product of its digits is 480000, while the sum is 40.

The spelling of 55443512245 in words is "fifty-five billion, four hundred forty-three million, five hundred twelve thousand, two hundred forty-five".