53575526 has 4 divisors (see below), whose sum is σ = 80363292. Its totient is φ = 26787762.

The previous prime is 53575513. The next prime is 53575531. The reversal of 53575526 is 62557535.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53575526.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13393880 + ... + 13393883.

It is an arithmetic number, because the mean of its divisors is an integer number (20090823).

Almost surely, 2^53575526 is an apocalyptic number.

53575526 is a deficient number, since it is larger than the sum of its proper divisors (26787766).

53575526 is a wasteful number, since it uses less digits than its factorization.

53575526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26787765.

The product of its digits is 157500, while the sum is 38.

The square root of 53575526 is about 7319.5304494209. The cubic root of 53575526 is about 376.9833313064.

Subtracting 53575526 from its reverse (62557535), we obtain a square (8982009 = 2997²).

The spelling of 53575526 in words is "fifty-three million, five hundred seventy-five thousand, five hundred twenty-six".