65020852 has 24 divisors (see below), whose sum is σ = 129749256. Its totient is φ = 28243968.

The previous prime is 65020849. The next prime is 65020867. The reversal of 65020852 is 25802056.

It can be written as a sum of positive squares in 4 ways, for example, as 6130576 + 58890276 = 2476^2 + 7674^2 .

It is a super-2 number, since 2×65020852² = 8455422389611808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65020852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35893 + ... + 37660.

It is an arithmetic number, because the mean of its divisors is an integer number (5406219).

Almost surely, 2^65020852 is an apocalyptic number.

It is an amenable number.

65020852 is a deficient number, since it is larger than the sum of its proper divisors (64728404).

65020852 is a wasteful number, since it uses less digits than its factorization.

65020852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73587 (or 73585 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 65020852 is about 8063.5508307445. The cubic root of 65020852 is about 402.1155662229.

Subtracting from 65020852 its reverse (25802056), we obtain a triangular number (39218796 = T₈₈₅₆).

The spelling of 65020852 in words is "sixty-five million, twenty thousand, eight hundred fifty-two".