65052981 has 24 divisors (see below), whose sum is σ = 107764800. Its totient is φ = 37043136.

The previous prime is 65052971. The next prime is 65053031. The reversal of 65052981 is 18925056.

It is a happy number.

65052981 is a `hidden beast` number, since 6 + 50 + 529 + 81 = 666.

It is not a de Polignac number, because 65052981 - 2⁶ = 65052917 is a prime.

It is a super-2 number, since 2×65052981² = 8463780673972722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65052971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18070 + ... + 21368.

It is an arithmetic number, because the mean of its divisors is an integer number (4490200).

Almost surely, 2^65052981 is an apocalyptic number.

It is an amenable number.

65052981 is a deficient number, since it is larger than the sum of its proper divisors (42711819).

65052981 is a wasteful number, since it uses less digits than its factorization.

65052981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625 (or 3622 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 65052981 is about 8065.5428211621. The cubic root of 65052981 is about 402.1817882794.

The spelling of 65052981 in words is "sixty-five million, fifty-two thousand, nine hundred eighty-one".