53536989 has 8 divisors (see below), whose sum is σ = 77872032. Its totient is φ = 32446640.

The previous prime is 53536981. The next prime is 53536991. The reversal of 53536989 is 98963535.

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 53536989 - 2³ = 53536981 is a prime.

It is a super-2 number, since 2×53536989² = 5732418382372242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53536981) 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, 811134 + ... + 811199.

It is an arithmetic number, because the mean of its divisors is an integer number (9734004).

Almost surely, 2^53536989 is an apocalyptic number.

It is an amenable number.

53536989 is a deficient number, since it is larger than the sum of its proper divisors (24335043).

53536989 is a wasteful number, since it uses less digits than its factorization.

53536989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622347.

The product of its digits is 874800, while the sum is 48.

The square root of 53536989 is about 7316.8974982570. The cubic root of 53536989 is about 376.8929212977.

The spelling of 53536989 in words is "fifty-three million, five hundred thirty-six thousand, nine hundred eighty-nine".