53523393 has 32 divisors (see below), whose sum is σ = 89413632. Its totient is φ = 27667200.

The previous prime is 53523389. The next prime is 53523401. The reversal of 53523393 is 39332535.

It is not a de Polignac number, because 53523393 - 2² = 53523389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (53523193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60313 + ... + 61193.

It is an arithmetic number, because the mean of its divisors is an integer number (2794176).

Almost surely, 2^53523393 is an apocalyptic number.

It is an amenable number.

53523393 is a deficient number, since it is larger than the sum of its proper divisors (35890239).

53523393 is a wasteful number, since it uses less digits than its factorization.

53523393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165.

The product of its digits is 36450, while the sum is 33.

The square root of 53523393 is about 7315.9683569573. The cubic root of 53523393 is about 376.8610139498.

The spelling of 53523393 in words is "fifty-three million, five hundred twenty-three thousand, three hundred ninety-three".