65212625 has 16 divisors (see below), whose sum is σ = 81651024. Its totient is φ = 52000000.

The previous prime is 65212621. The next prime is 65212649. The reversal of 65212625 is 52621256.

It can be written as a sum of positive squares in 8 ways, for example, as 23001616 + 42211009 = 4796^2 + 6497^2 .

It is not a de Polignac number, because 65212625 - 2² = 65212621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65212621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49475 + ... + 50775.

It is an arithmetic number, because the mean of its divisors is an integer number (5103189).

Almost surely, 2^65212625 is an apocalyptic number.

It is an amenable number.

65212625 is a deficient number, since it is larger than the sum of its proper divisors (16438399).

65212625 is a wasteful number, since it uses less digits than its factorization.

65212625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1707 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 65212625 is about 8075.4334249005. The cubic root of 65212625 is about 402.5105124371.

The spelling of 65212625 in words is "sixty-five million, two hundred twelve thousand, six hundred twenty-five".