53632591 has 2 divisors, whose sum is σ = 53632592. Its totient is φ = 53632590.

The previous prime is 53632583. The next prime is 53632627. The reversal of 53632591 is 19523635.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53632591 - 2³ = 53632583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53632541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26816295 + 26816296.

It is an arithmetic number, because the mean of its divisors is an integer number (26816296).

Almost surely, 2^53632591 is an apocalyptic number.

53632591 is a deficient number, since it is larger than the sum of its proper divisors (1).

53632591 is an equidigital number, since it uses as much as digits as its factorization.

53632591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 34.

The square root of 53632591 is about 7323.4275445313. The cubic root of 53632591 is about 377.1171294665.

The spelling of 53632591 in words is "fifty-three million, six hundred thirty-two thousand, five hundred ninety-one".