63509492 has 12 divisors (see below), whose sum is σ = 113852676. Its totient is φ = 30980160.

The previous prime is 63509477. The next prime is 63509513. The reversal of 63509492 is 29490536.

It can be written as a sum of positive squares in 2 ways, for example, as 31315216 + 32194276 = 5596^2 + 5674^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193463 + ... + 193790.

It is an arithmetic number, because the mean of its divisors is an integer number (9487723).

Almost surely, 2^63509492 is an apocalyptic number.

It is an amenable number.

63509492 is a deficient number, since it is larger than the sum of its proper divisors (50343184).

63509492 is a wasteful number, since it uses less digits than its factorization.

63509492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387298 (or 387296 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 63509492 is about 7969.2842840496. The cubic root of 63509492 is about 398.9754865039.

The spelling of 63509492 in words is "sixty-three million, five hundred nine thousand, four hundred ninety-two".