65247625 has 8 divisors (see below), whose sum is σ = 81429192. Its totient is φ = 52198000.

The previous prime is 65247607. The next prime is 65247629. The reversal of 65247625 is 52674256.

It can be written as a sum of positive squares in 4 ways, for example, as 18844281 + 46403344 = 4341^2 + 6812^2 .

It is not a de Polignac number, because 65247625 - 2²³ = 56859017 is a prime.

It is a super-3 number, since 3×65247625³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65247629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260866 + ... + 261115.

It is an arithmetic number, because the mean of its divisors is an integer number (10178649).

Almost surely, 2^65247625 is an apocalyptic number.

It is an amenable number.

65247625 is a deficient number, since it is larger than the sum of its proper divisors (16181567).

65247625 is an equidigital number, since it uses as much as digits as its factorization.

65247625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521996 (or 521986 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 65247625 is about 8077.6002005546. The cubic root of 65247625 is about 402.5825094793.

The spelling of 65247625 in words is "sixty-five million, two hundred forty-seven thousand, six hundred twenty-five".