53729429 has 8 divisors (see below), whose sum is σ = 57932952. Its totient is φ = 49536000.

The previous prime is 53729419. The next prime is 53729441. The reversal of 53729429 is 92492735.

It can be written as a sum of positive squares in 4 ways, for example, as 2220100 + 51509329 = 1490^2 + 7177^2 .

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 53729429 - 2¹⁶ = 53663893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53729419) 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, 11429 + ... + 15429.

It is an arithmetic number, because the mean of its divisors is an integer number (7241619).

Almost surely, 2^53729429 is an apocalyptic number.

It is an amenable number.

53729429 is a deficient number, since it is larger than the sum of its proper divisors (4203523).

53729429 is a wasteful number, since it uses less digits than its factorization.

53729429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047.

The product of its digits is 136080, while the sum is 41.

The square root of 53729429 is about 7330.0360844951. The cubic root of 53729429 is about 377.3439648691.

The spelling of 53729429 in words is "fifty-three million, seven hundred twenty-nine thousand, four hundred twenty-nine".