55261140612 has 24 divisors (see below), whose sum is σ = 128971334016. Its totient is φ = 18416284128.

The previous prime is 55261140587. The next prime is 55261140629. The reversal of 55261140612 is 21604116255.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455548 + ... + 563955.

It is an arithmetic number, because the mean of its divisors is an integer number (5373805584).

Almost surely, 2^55261140612 is an apocalyptic number.

It is an amenable number.

55261140612 is an abundant number, since it is smaller than the sum of its proper divisors (73710193404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55261140612 is a wasteful number, since it uses less digits than its factorization.

55261140612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024027 (or 1024025 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 55261140612 its reverse (21604116255), we get a palindrome (76865256867).

The spelling of 55261140612 in words is "fifty-five billion, two hundred sixty-one million, one hundred forty thousand, six hundred twelve".