53445229 has 8 divisors (see below), whose sum is σ = 56679480. Its totient is φ = 50221056.

The previous prime is 53445221. The next prime is 53445239. The reversal of 53445229 is 92254435.

It can be written as a sum of positive squares in 4 ways, for example, as 43692100 + 9753129 = 6610^2 + 3123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53445229 - 2³ = 53445221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53445194 and 53445203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53445221) 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, 10317 + ... + 14605.

It is an arithmetic number, because the mean of its divisors is an integer number (7084935).

Almost surely, 2^53445229 is an apocalyptic number.

It is an amenable number.

53445229 is a deficient number, since it is larger than the sum of its proper divisors (3234251).

53445229 is a wasteful number, since it uses less digits than its factorization.

53445229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039.

The product of its digits is 43200, while the sum is 34.

The square root of 53445229 is about 7310.6243919381. The cubic root of 53445229 is about 376.6774723016.

The spelling of 53445229 in words is "fifty-three million, four hundred forty-five thousand, two hundred twenty-nine".