63898525 has 24 divisors (see below), whose sum is σ = 81021600. Its totient is φ = 49982400.

The previous prime is 63898493. The next prime is 63898547. The reversal of 63898525 is 52589836.

It is not a de Polignac number, because 63898525 - 2⁵ = 63898493 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356886 + ... + 357064.

It is an arithmetic number, because the mean of its divisors is an integer number (3375900).

Almost surely, 2^63898525 is an apocalyptic number.

It is an amenable number.

63898525 is a deficient number, since it is larger than the sum of its proper divisors (17123075).

63898525 is a wasteful number, since it uses less digits than its factorization.

63898525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 424 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The square root of 63898525 is about 7993.6552965461. The cubic root of 63898525 is about 399.7884819200.

Adding to 63898525 its product of digits (518400), we get a triangular number (64416925 = T₁₁₃₅₀).

The spelling of 63898525 in words is "sixty-three million, eight hundred ninety-eight thousand, five hundred twenty-five".