55121262 has 16 divisors (see below), whose sum is σ = 125991552. Its totient is φ = 15748920.

The previous prime is 55121251. The next prime is 55121267. The reversal of 55121262 is 26212155.

It is a happy number.

55121262 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55121267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656164 + ... + 656247.

It is an arithmetic number, because the mean of its divisors is an integer number (7874472).

Almost surely, 2^55121262 is an apocalyptic number.

55121262 is an abundant number, since it is smaller than the sum of its proper divisors (70870290).

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

55121262 is a wasteful number, since it uses less digits than its factorization.

55121262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312423.

The product of its digits is 1200, while the sum is 24.

The square root of 55121262 is about 7424.3694681771. The cubic root of 55121262 is about 380.5745279696.

The spelling of 55121262 in words is "fifty-five million, one hundred twenty-one thousand, two hundred sixty-two".