63526387 has 2 divisors, whose sum is σ = 63526388. Its totient is φ = 63526386.

The previous prime is 63526381. The next prime is 63526429. The reversal of 63526387 is 78362536.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63526387 - 2⁷ = 63526259 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63526381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31763193 + 31763194.

It is an arithmetic number, because the mean of its divisors is an integer number (31763194).

Almost surely, 2^63526387 is an apocalyptic number.

63526387 is a deficient number, since it is larger than the sum of its proper divisors (1).

63526387 is an equidigital number, since it uses as much as digits as its factorization.

63526387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 63526387 is about 7970.3442209230. The cubic root of 63526387 is about 399.0108622826.

The spelling of 63526387 in words is "sixty-three million, five hundred twenty-six thousand, three hundred eighty-seven".