53921229 has 8 divisors (see below), whose sum is σ = 76124160. Its totient is φ = 33832896.

The previous prime is 53921209. The next prime is 53921249. The reversal of 53921229 is 92212935.

It is an interprime number because it is at equal distance from previous prime (53921209) and next prime (53921249).

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

It is not a de Polignac number, because 53921229 - 2¹³ = 53913037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53921229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53921209) 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, 528589 + ... + 528690.

It is an arithmetic number, because the mean of its divisors is an integer number (9515520).

Almost surely, 2^53921229 is an apocalyptic number.

It is an amenable number.

53921229 is a deficient number, since it is larger than the sum of its proper divisors (22202931).

53921229 is a wasteful number, since it uses less digits than its factorization.

53921229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057299.

The product of its digits is 9720, while the sum is 33.

The square root of 53921229 is about 7343.1075846674. The cubic root of 53921229 is about 377.7924380476.

It can be divided in two parts, 539212 and 29, that added together give a triangular number (539241 = T₁₀₃₈).

The spelling of 53921229 in words is "fifty-three million, nine hundred twenty-one thousand, two hundred twenty-nine".