54222129 has 60 divisors (see below), whose sum is σ = 93266316. Its totient is φ = 31269888.

The previous prime is 54222089. The next prime is 54222139. The reversal of 54222129 is 92122245.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8294400 + 45927729 = 2880^2 + 6777^2 .

It is not a de Polignac number, because 54222129 - 2⁷ = 54222001 is a prime.

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

54222129 is a Rhonda number in base 10.

Its product of digits (2880) is a multiple of the sum of its prime factors (288).

It is not an unprimeable number, because it can be changed into a prime (54222139) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 232597 + ... + 232829.

Almost surely, 2^54222129 is an apocalyptic number.

It is an amenable number.

54222129 is a deficient number, since it is larger than the sum of its proper divisors (39044187).

54222129 is a wasteful number, since it uses less digits than its factorization.

54222129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 266 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 54222129 is about 7363.5676814979. The cubic root of 54222129 is about 378.4938744794.

The spelling of 54222129 in words is "fifty-four million, two hundred twenty-two thousand, one hundred twenty-nine".