63456523 has 16 divisors (see below), whose sum is σ = 72352000. Its totient is φ = 55170720.

The previous prime is 63456511. The next prime is 63456539. The reversal of 63456523 is 32565436.

It is a cyclic number.

It is not a de Polignac number, because 63456523 - 2¹³ = 63448331 is a prime.

It is a super-2 number, since 2×63456523² = 8053460622499058, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (63456823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48508 + ... + 49798.

It is an arithmetic number, because the mean of its divisors is an integer number (4522000).

Almost surely, 2^63456523 is an apocalyptic number.

63456523 is a deficient number, since it is larger than the sum of its proper divisors (8895477).

63456523 is a wasteful number, since it uses less digits than its factorization.

63456523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522.

The product of its digits is 64800, while the sum is 34.

The square root of 63456523 is about 7965.9602685426. The cubic root of 63456523 is about 398.8645361042.

The spelling of 63456523 in words is "sixty-three million, four hundred fifty-six thousand, five hundred twenty-three".