65249453 has 2 divisors, whose sum is σ = 65249454. Its totient is φ = 65249452.

The previous prime is 65249419. The next prime is 65249467. The reversal of 65249453 is 35494256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54213769 + 11035684 = 7363^2 + 3322^2 .

It is a cyclic number.

It is not a de Polignac number, because 65249453 - 2¹² = 65245357 is a prime.

It is a super-3 number, since 3×65249453³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65249753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32624726 + 32624727.

It is an arithmetic number, because the mean of its divisors is an integer number (32624727).

Almost surely, 2^65249453 is an apocalyptic number.

It is an amenable number.

65249453 is a deficient number, since it is larger than the sum of its proper divisors (1).

65249453 is an equidigital number, since it uses as much as digits as its factorization.

65249453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 38.

The square root of 65249453 is about 8077.7133521808. The cubic root of 65249453 is about 402.5862690744.

It can be divided in two parts, 652 and 49453, that added together give a palindrome (50105).

The spelling of 65249453 in words is "sixty-five million, two hundred forty-nine thousand, four hundred fifty-three".