55722135 has 32 divisors (see below), whose sum is σ = 102961152. Its totient is φ = 25205760.

The previous prime is 55722131. The next prime is 55722167. The reversal of 55722135 is 53122755.

It is not a de Polignac number, because 55722135 - 2² = 55722131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55722131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7450 + ... + 12920.

It is an arithmetic number, because the mean of its divisors is an integer number (3217536).

Almost surely, 2^55722135 is an apocalyptic number.

55722135 is a deficient number, since it is larger than the sum of its proper divisors (47239017).

55722135 is a wasteful number, since it uses less digits than its factorization.

55722135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5583.

The product of its digits is 10500, while the sum is 30.

The square root of 55722135 is about 7464.7260498963. The cubic root of 55722135 is about 381.9524053711.

The spelling of 55722135 in words is "fifty-five million, seven hundred twenty-two thousand, one hundred thirty-five".