52537481 has 2 divisors, whose sum is σ = 52537482. Its totient is φ = 52537480.

The previous prime is 52537427. The next prime is 52537517. The reversal of 52537481 is 18473525.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46854025 + 5683456 = 6845^2 + 2384^2 .

It is a cyclic number.

It is not a de Polignac number, because 52537481 - 2⁶ = 52537417 is a prime.

It is a super-2 number, since 2×52537481² = 5520373819650722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52537411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26268740 + 26268741.

It is an arithmetic number, because the mean of its divisors is an integer number (26268741).

Almost surely, 2^52537481 is an apocalyptic number.

It is an amenable number.

52537481 is a deficient number, since it is larger than the sum of its proper divisors (1).

52537481 is an equidigital number, since it uses as much as digits as its factorization.

52537481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 35.

The square root of 52537481 is about 7248.2743463531. The cubic root of 52537481 is about 374.5327062356.

The spelling of 52537481 in words is "fifty-two million, five hundred thirty-seven thousand, four hundred eighty-one".