55136322 has 16 divisors (see below), whose sum is σ = 122525280. Its totient is φ = 18378756.

The previous prime is 55136303. The next prime is 55136329. The reversal of 55136322 is 22363155.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55136329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510468 + ... + 510575.

It is an arithmetic number, because the mean of its divisors is an integer number (7657830).

Almost surely, 2^55136322 is an apocalyptic number.

55136322 is an abundant number, since it is smaller than the sum of its proper divisors (67388958).

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

55136322 is a wasteful number, since it uses less digits than its factorization.

55136322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021054 (or 1021048 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 55136322 is about 7425.3836264532. The cubic root of 55136322 is about 380.6091844723.

Adding to 55136322 its reverse (22363155), we get a palindrome (77499477).

The spelling of 55136322 in words is "fifty-five million, one hundred thirty-six thousand, three hundred twenty-two".