65277613 has 8 divisors (see below), whose sum is σ = 66859776. Its totient is φ = 63714000.

The previous prime is 65277577. The next prime is 65277647. The reversal of 65277613 is 31677256.

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

It is a cyclic number.

It is not a de Polignac number, because 65277613 - 2⁹ = 65277101 is a prime.

It is a super-2 number, since 2×65277613² = 8522333517955538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65277713) 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, 2620 + ... + 11722.

It is an arithmetic number, because the mean of its divisors is an integer number (8357472).

Almost surely, 2^65277613 is an apocalyptic number.

It is an amenable number.

65277613 is a deficient number, since it is larger than the sum of its proper divisors (1582163).

65277613 is a wasteful number, since it uses less digits than its factorization.

65277613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9275.

The product of its digits is 52920, while the sum is 37.

The square root of 65277613 is about 8079.4562317027. The cubic root of 65277613 is about 402.6441760673.

The spelling of 65277613 in words is "sixty-five million, two hundred seventy-seven thousand, six hundred thirteen".