63315405 has 32 divisors (see below), whose sum is σ = 113253120. Its totient is φ = 33560640.

The previous prime is 63315397. The next prime is 63315407. The reversal of 63315405 is 50451336.

It is not a de Polignac number, because 63315405 - 2³ = 63315397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63315407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22000 + ... + 24710.

It is an arithmetic number, because the mean of its divisors is an integer number (3539160).

Almost surely, 2^63315405 is an apocalyptic number.

It is an amenable number.

63315405 is a deficient number, since it is larger than the sum of its proper divisors (49937715).

63315405 is a wasteful number, since it uses less digits than its factorization.

63315405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898 (or 2892 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 63315405 is about 7957.0977749428. The cubic root of 63315405 is about 398.5686445803.

The spelling of 63315405 in words is "sixty-three million, three hundred fifteen thousand, four hundred five".