53857929 has 8 divisors (see below), whose sum is σ = 72084672. Its totient is φ = 35768240.

The previous prime is 53857919. The next prime is 53857939. The reversal of 53857929 is 92975835.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53857919) and next prime (53857939).

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 53857929 - 2⁸ = 53857673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53857919) 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, 33342 + ... + 34919.

It is an arithmetic number, because the mean of its divisors is an integer number (9010584).

Almost surely, 2^53857929 is an apocalyptic number.

It is an amenable number.

53857929 is a deficient number, since it is larger than the sum of its proper divisors (18226743).

53857929 is a wasteful number, since it uses less digits than its factorization.

53857929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68527.

The product of its digits is 680400, while the sum is 48.

The square root of 53857929 is about 7338.7961546837. The cubic root of 53857929 is about 377.6445456139.

The spelling of 53857929 in words is "fifty-three million, eight hundred fifty-seven thousand, nine hundred twenty-nine".