65020650 has 24 divisors (see below), whose sum is σ = 161251584. Its totient is φ = 17338800.

The previous prime is 65020649. The next prime is 65020651. The reversal of 65020650 is 5602056.

It is an interprime number because it is at equal distance from previous prime (65020649) and next prime (65020651).

It is a self number, because there is not a number n which added to its sum of digits gives 65020650.

It is not an unprimeable number, because it can be changed into a prime (65020651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216586 + ... + 216885.

It is an arithmetic number, because the mean of its divisors is an integer number (6718816).

Almost surely, 2^65020650 is an apocalyptic number.

65020650 is an abundant number, since it is smaller than the sum of its proper divisors (96230934).

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

65020650 is a wasteful number, since it uses less digits than its factorization.

65020650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433486 (or 433481 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 65020650 is about 8063.5383052355. The cubic root of 65020650 is about 402.1151498056.

The spelling of 65020650 in words is "sixty-five million, twenty thousand, six hundred fifty".