6215625 has 72 divisors (see below), whose sum is σ = 12796056. Its totient is φ = 2880000.

The previous prime is 6215623. The next prime is 6215639. The reversal of 6215625 is 5265126.

It can be written as a sum of positive squares in 12 ways, for example, as 6215049 + 576 = 2493^2 + 24^2 .

It is not a de Polignac number, because 6215625 - 2¹ = 6215623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6215623) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 365617 + ... + 365633.

It is an arithmetic number, because the mean of its divisors is an integer number (177723).

Almost surely, 2^6215625 is an apocalyptic number.

6215625 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6215625 is an abundant number, since it is smaller than the sum of its proper divisors (6580431).

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

6215625 is a wasteful number, since it uses less digits than its factorization.

6215625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 38 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 6215625 is about 2493.1155207892. The cubic root of 6215625 is about 183.8632510240.

The spelling of 6215625 in words is "six million, two hundred fifteen thousand, six hundred twenty-five".