53535819 has 4 divisors (see below), whose sum is σ = 71381096. Its totient is φ = 35690544.

The previous prime is 53535809. The next prime is 53535829. The reversal of 53535819 is 91853535.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (53535809) and next prime (53535829).

It is not a de Polignac number, because 53535819 - 2⁸ = 53535563 is a prime.

It is a super-2 number, since 2×53535819² = 5732167832001522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53535809) 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, 8922634 + ... + 8922639.

It is an arithmetic number, because the mean of its divisors is an integer number (17845274).

Almost surely, 2^53535819 is an apocalyptic number.

53535819 is a deficient number, since it is larger than the sum of its proper divisors (17845277).

53535819 is a wasteful number, since it uses less digits than its factorization.

53535819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17845276.

The product of its digits is 81000, while the sum is 39.

The square root of 53535819 is about 7316.8175459007. The cubic root of 53535819 is about 376.8901757322.

The spelling of 53535819 in words is "fifty-three million, five hundred thirty-five thousand, eight hundred nineteen".