55266553212 has 48 divisors (see below), whose sum is σ = 140435356320. Its totient is φ = 16814020608.

The previous prime is 55266553211. The next prime is 55266553229. The reversal of 55266553212 is 21235566255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55266553211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1976413 + ... + 2004180.

It is an arithmetic number, because the mean of its divisors is an integer number (2925736590).

Almost surely, 2^55266553212 is an apocalyptic number.

55266553212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55266553212 is an abundant number, since it is smaller than the sum of its proper divisors (85168803108).

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

55266553212 is a wasteful number, since it uses less digits than its factorization.

55266553212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980702 (or 3980700 counting only the distinct ones).

The product of its digits is 540000, while the sum is 42.

The spelling of 55266553212 in words is "fifty-five billion, two hundred sixty-six million, five hundred fifty-three thousand, two hundred twelve".