65250630 has 64 divisors (see below), whose sum is σ = 176647680. Its totient is φ = 17135712.

The previous prime is 65250623. The next prime is 65250643. The reversal of 65250630 is 3605256.

65250630 is a `hidden beast` number, since 6 + 5 + 25 + 0 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 65250594 and 65250603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16287 + ... + 19893.

It is an arithmetic number, because the mean of its divisors is an integer number (2760120).

Almost surely, 2^65250630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65250630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88323840).

65250630 is an abundant number, since it is smaller than the sum of its proper divisors (111397050).

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

65250630 is a wasteful number, since it uses less digits than its factorization.

65250630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690 (or 3684 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 65250630 is about 8077.7862066286. The cubic root of 65250630 is about 402.5886897394.

Adding to 65250630 its reverse (3605256), we get a palindrome (68855886).

The spelling of 65250630 in words is "sixty-five million, two hundred fifty thousand, six hundred thirty".