65252620 has 24 divisors (see below), whose sum is σ = 137413584. Its totient is φ = 26028096.

The previous prime is 65252611. The next prime is 65252623. The reversal of 65252620 is 2625256.

It is not an unprimeable number, because it can be changed into a prime (65252623) 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, 3087 + ... + 11833.

It is an arithmetic number, because the mean of its divisors is an integer number (5725566).

Almost surely, 2^65252620 is an apocalyptic number.

It is an amenable number.

65252620 is an abundant number, since it is smaller than the sum of its proper divisors (72160964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65252620 is a wasteful number, since it uses less digits than its factorization.

65252620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9129 (or 9127 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 65252620 is about 8077.9093830025. The cubic root of 65252620 is about 402.5927823862.

Adding to 65252620 its reverse (2625256), we get a palindrome (67877876).

The spelling of 65252620 in words is "sixty-five million, two hundred fifty-two thousand, six hundred twenty".