2513538 has 32 divisors (see below), whose sum is σ = 5659200. Its totient is φ = 826848.

The previous prime is 2513527. The next prime is 2513549. The reversal of 2513538 is 8353152.

It is an interprime number because it is at equal distance from previous prime (2513527) and next prime (2513549).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4545 + ... + 5067.

It is an arithmetic number, because the mean of its divisors is an integer number (176850).

2^2513538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2513538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2829600).

2513538 is an abundant number, since it is smaller than the sum of its proper divisors (3145662).

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

2513538 is a wasteful number, since it uses less digits than its factorization.

2513538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 617 counting only the distinct ones).

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

The square root of 2513538 is about 1585.4141414785. The cubic root of 2513538 is about 135.9654251786.

The spelling of 2513538 in words is "two million, five hundred thirteen thousand, five hundred thirty-eight".