2506537 has 16 divisors (see below), whose sum is σ = 2937600. Its totient is φ = 2114640.

The previous prime is 2506523. The next prime is 2506541. The reversal of 2506537 is 7356052.

It is not a de Polignac number, because 2506537 - 2⁷ = 2506409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2506547) 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, 13914 + ... + 14092.

It is an arithmetic number, because the mean of its divisors is an integer number (183600).

2^2506537 is an apocalyptic number.

It is an amenable number.

2506537 is a deficient number, since it is larger than the sum of its proper divisors (431063).

2506537 is a wasteful number, since it uses less digits than its factorization.

2506537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 2506537 is about 1583.2046614383. The cubic root of 2506537 is about 135.8390721937.

It can be divided in two parts, 250653 and 7, that multiplied together give a palindrome (1754571).

The spelling of 2506537 in words is "two million, five hundred six thousand, five hundred thirty-seven".