65042715 has 16 divisors (see below), whose sum is σ = 104168736. Its totient is φ = 34656000.

The previous prime is 65042711. The next prime is 65042717. The reversal of 65042715 is 51724056.

65042715 is a nontrivial binomial coefficient, being equal to C(11406, 2).

It is not a de Polignac number, because 65042715 - 2² = 65042711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65042711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27375 + ... + 29655.

It is an arithmetic number, because the mean of its divisors is an integer number (6510546).

Almost surely, 2^65042715 is an apocalyptic number.

65042715 is the 11405-th triangular number and also the 5703-rd hexagonal number.

65042715 is a deficient number, since it is larger than the sum of its proper divisors (39126021).

65042715 is a wasteful number, since it uses less digits than its factorization.

65042715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 65042715 is about 8064.9063850735. The cubic root of 65042715 is about 402.1606310863.

It can be divided in two parts, 650 and 42715, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 65042715 in words is "sixty-five million, forty-two thousand, seven hundred fifteen".