63490655 has 16 divisors (see below), whose sum is σ = 78897024. Its totient is φ = 49017600.

The previous prime is 63490639. The next prime is 63490663. The reversal of 63490655 is 55609436.

It is not a de Polignac number, because 63490655 - 2⁴ = 63490639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15305 + ... + 19005.

It is an arithmetic number, because the mean of its divisors is an integer number (4931064).

Almost surely, 2^63490655 is an apocalyptic number.

63490655 is a deficient number, since it is larger than the sum of its proper divisors (15406369).

63490655 is a wasteful number, since it uses less digits than its factorization.

63490655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 63490655 is about 7968.1023462302. The cubic root of 63490655 is about 398.9360370497.

The spelling of 63490655 in words is "sixty-three million, four hundred ninety thousand, six hundred fifty-five".