55533740 has 12 divisors (see below), whose sum is σ = 116620896. Its totient is φ = 22213488.

The previous prime is 55533703. The next prime is 55533763. The reversal of 55533740 is 4733555.

55533740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55533697 and 55533706.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1388324 + ... + 1388363.

It is an arithmetic number, because the mean of its divisors is an integer number (9718408).

Almost surely, 2^55533740 is an apocalyptic number.

It is an amenable number.

55533740 is an abundant number, since it is smaller than the sum of its proper divisors (61087156).

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

55533740 is a wasteful number, since it uses less digits than its factorization.

55533740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776696 (or 2776694 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 55533740 is about 7452.0963493503. The cubic root of 55533740 is about 381.5214624912.

The spelling of 55533740 in words is "fifty-five million, five hundred thirty-three thousand, seven hundred forty".