2500215 has 16 divisors (see below), whose sum is σ = 4174848. Its totient is φ = 1275296.

The previous prime is 2500213. The next prime is 2500273. The reversal of 2500215 is 5120052.

It is a cyclic number.

It is not a de Polignac number, because 2500215 - 2¹ = 2500213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 2500194 and 2500203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500213) 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, 3279 + ... + 3968.

It is an arithmetic number, because the mean of its divisors is an integer number (260928).

2^2500215 is an apocalyptic number.

2500215 is a deficient number, since it is larger than the sum of its proper divisors (1674633).

2500215 is a wasteful number, since it uses less digits than its factorization.

2500215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7278.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 2500215 is about 1581.2068175922. The cubic root of 2500215 is about 135.7247713835.

Adding to 2500215 its reverse (5120052), we get a palindrome (7620267).

The spelling of 2500215 in words is "two million, five hundred thousand, two hundred fifteen".