53729087 has 4 divisors (see below), whose sum is σ = 54231336. Its totient is φ = 53226840.

The previous prime is 53729057. The next prime is 53729099. The reversal of 53729087 is 78092735.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53729087 - 2¹² = 53724991 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 (53729057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250964 + ... + 251177.

It is an arithmetic number, because the mean of its divisors is an integer number (13557834).

Almost surely, 2^53729087 is an apocalyptic number.

53729087 is a deficient number, since it is larger than the sum of its proper divisors (502249).

53729087 is a wasteful number, since it uses less digits than its factorization.

53729087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502248.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 53729087 is about 7330.0127557870. The cubic root of 53729087 is about 377.3431642407.

The spelling of 53729087 in words is "fifty-three million, seven hundred twenty-nine thousand, eighty-seven".