63157563 has 80 divisors (see below), whose sum is σ = 117089280. Its totient is φ = 33130944.

The previous prime is 63157561. The next prime is 63157603. The reversal of 63157563 is 36575136.

It is a happy number.

It is not a de Polignac number, because 63157563 - 2¹ = 63157561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63157561) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 378106 + ... + 378272.

It is an arithmetic number, because the mean of its divisors is an integer number (1463616).

Almost surely, 2^63157563 is an apocalyptic number.

63157563 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

63157563 is a deficient number, since it is larger than the sum of its proper divisors (53931717).

63157563 is a wasteful number, since it uses less digits than its factorization.

63157563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 229 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The square root of 63157563 is about 7947.1732710442. The cubic root of 63157563 is about 398.2371653646.

The spelling of 63157563 in words is "sixty-three million, one hundred fifty-seven thousand, five hundred sixty-three".