65763538 has 4 divisors (see below), whose sum is σ = 98645310. Its totient is φ = 32881768.

The previous prime is 65763487. The next prime is 65763539. The reversal of 65763538 is 83536756.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41822089 + 23941449 = 6467^2 + 4893^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65763494 and 65763503.

It is not an unprimeable number, because it can be changed into a prime (65763539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16440883 + ... + 16440886.

Almost surely, 2^65763538 is an apocalyptic number.

65763538 is a deficient number, since it is larger than the sum of its proper divisors (32881772).

65763538 is a wasteful number, since it uses less digits than its factorization.

65763538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32881771.

The product of its digits is 453600, while the sum is 43.

The square root of 65763538 is about 8109.4721159888. The cubic root of 65763538 is about 403.6407984248.

The spelling of 65763538 in words is "sixty-five million, seven hundred sixty-three thousand, five hundred thirty-eight".