65507487 has 8 divisors (see below), whose sum is σ = 87381936. Its totient is φ = 43652352.

The previous prime is 65507483. The next prime is 65507513. The reversal of 65507487 is 78470556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65507487 - 2² = 65507483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65507483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7833 + ... + 13869.

It is an arithmetic number, because the mean of its divisors is an integer number (10922742).

Almost surely, 2^65507487 is an apocalyptic number.

65507487 is a deficient number, since it is larger than the sum of its proper divisors (21874449).

65507487 is a wasteful number, since it uses less digits than its factorization.

65507487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9657.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 65507487 is about 8093.6695633069. The cubic root of 65507487 is about 403.1162572228.

The spelling of 65507487 in words is "sixty-five million, five hundred seven thousand, four hundred eighty-seven".