52526399 has 4 divisors (see below), whose sum is σ = 52604664. Its totient is φ = 52448136.

The previous prime is 52526351. The next prime is 52526423. The reversal of 52526399 is 99362525.

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

It is a cyclic number.

It is not a de Polignac number, because 52526399 - 2¹² = 52522303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52526599) 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, 38117 + ... + 39470.

It is an arithmetic number, because the mean of its divisors is an integer number (13151166).

Almost surely, 2^52526399 is an apocalyptic number.

52526399 is a deficient number, since it is larger than the sum of its proper divisors (78265).

52526399 is an equidigital number, since it uses as much as digits as its factorization.

52526399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78264.

The product of its digits is 145800, while the sum is 41.

The square root of 52526399 is about 7247.5098482168. The cubic root of 52526399 is about 374.5063703497.

It can be divided in two parts, 52526 and 399, that added together give a palindrome (52925).

The spelling of 52526399 in words is "fifty-two million, five hundred twenty-six thousand, three hundred ninety-nine".