65081049 has 16 divisors (see below), whose sum is σ = 100232640. Its totient is φ = 37122560.

The previous prime is 65081011. The next prime is 65081087. The reversal of 65081049 is 94018056.

It is an interprime number because it is at equal distance from previous prime (65081011) and next prime (65081087).

It is not a de Polignac number, because 65081049 - 2¹⁶ = 65015513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (65081749) 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, 57444 + ... + 58565.

It is an arithmetic number, because the mean of its divisors is an integer number (6264540).

Almost surely, 2^65081049 is an apocalyptic number.

It is an amenable number.

65081049 is a deficient number, since it is larger than the sum of its proper divisors (35151591).

65081049 is a wasteful number, since it uses less digits than its factorization.

65081049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116040.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 65081049 is about 8067.2826279981. The cubic root of 65081049 is about 402.2396222436.

It can be divided in two parts, 6508 and 1049, that added together give a palindrome (7557).

The spelling of 65081049 in words is "sixty-five million, eighty-one thousand, forty-nine".