2506389 has 8 divisors (see below), whose sum is σ = 3350880. Its totient is φ = 1666416.

The previous prime is 2506373. The next prime is 2506391. The reversal of 2506389 is 9836052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2506389 - 2⁴ = 2506373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507 + ... + 2295.

It is an arithmetic number, because the mean of its divisors is an integer number (418860).

2^2506389 is an apocalyptic number.

It is an amenable number.

2506389 is a deficient number, since it is larger than the sum of its proper divisors (844491).

2506389 is a wasteful number, since it uses less digits than its factorization.

2506389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2506389 is about 1583.1579201078. The cubic root of 2506389 is about 135.8363985742.

It can be divided in two parts, 25063 and 89, that added together give a palindrome (25152).

The spelling of 2506389 in words is "two million, five hundred six thousand, three hundred eighty-nine".