65454489 has 6 divisors (see below), whose sum is σ = 94545386. Its totient is φ = 43636320.

The previous prime is 65454463. The next prime is 65454497. The reversal of 65454489 is 98445456.

It can be written as a sum of positive squares in only one way, i.e., 61779600 + 3674889 = 7860^2 + 1917^2 .

It is not a de Polignac number, because 65454489 - 2⁵ = 65454457 is a prime.

It is a super-2 number, since 2×65454489² = 8568580260502242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65454419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3636352 + ... + 3636369.

Almost surely, 2^65454489 is an apocalyptic number.

It is an amenable number.

65454489 is a deficient number, since it is larger than the sum of its proper divisors (29090897).

65454489 is a wasteful number, since it uses less digits than its factorization.

65454489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7272727 (or 7272724 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 65454489 is about 8090.3948605739. The cubic root of 65454489 is about 403.0075158637.

Adding to 65454489 its product of digits (691200), we get a square (66145689 = 8133²).

The spelling of 65454489 in words is "sixty-five million, four hundred fifty-four thousand, four hundred eighty-nine".