65455081 has 4 divisors (see below), whose sum is σ = 65475664. Its totient is φ = 65434500.

The previous prime is 65455051. The next prime is 65455121. The reversal of 65455081 is 18055456.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65455081 - 2⁷ = 65454953 is a prime.

It is a super-2 number, since 2×65455081² = 8568735257433122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65455031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4395 + ... + 12256.

It is an arithmetic number, because the mean of its divisors is an integer number (16368916).

Almost surely, 2^65455081 is an apocalyptic number.

It is an amenable number.

65455081 is a deficient number, since it is larger than the sum of its proper divisors (20583).

65455081 is a wasteful number, since it uses less digits than its factorization.

65455081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20582.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 65455081 is about 8090.4314470861. The cubic root of 65455081 is about 403.0087308541.

The spelling of 65455081 in words is "sixty-five million, four hundred fifty-five thousand, eighty-one".