55261238 has 16 divisors (see below), whose sum is σ = 83954880. Its totient is φ = 27278856.

The previous prime is 55261231. The next prime is 55261243. The reversal of 55261238 is 83216255.

55261238 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 (55261231) 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, 57881 + ... + 58827.

It is an arithmetic number, because the mean of its divisors is an integer number (5247180).

Almost surely, 2^55261238 is an apocalyptic number.

55261238 is a deficient number, since it is larger than the sum of its proper divisors (28693642).

55261238 is a wasteful number, since it uses less digits than its factorization.

55261238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291.

The product of its digits is 14400, while the sum is 32.

The square root of 55261238 is about 7433.7902849085. The cubic root of 55261238 is about 380.8964017740.

The spelling of 55261238 in words is "fifty-five million, two hundred sixty-one thousand, two hundred thirty-eight".