2525739 has 4 divisors (see below), whose sum is σ = 3367656. Its totient is φ = 1683824.

The previous prime is 2525729. The next prime is 2525749. The reversal of 2525739 is 9375252.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2525729) and next prime (2525749).

It is a cyclic number.

It is not a de Polignac number, because 2525739 - 2⁹ = 2525227 is a prime.

It is a super-2 number, since 2×2525739² = 12758714992242, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹³ + 5³ + 2¹⁵ + 5⁹ + 7 + 3¹² + 9² .

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2525729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420954 + ... + 420959.

It is an arithmetic number, because the mean of its divisors is an integer number (841914).

2^2525739 is an apocalyptic number.

2525739 is a deficient number, since it is larger than the sum of its proper divisors (841917).

2525739 is an equidigital number, since it uses as much as digits as its factorization.

2525739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841916.

The product of its digits is 18900, while the sum is 33.

The square root of 2525739 is about 1589.2573737441. The cubic root of 2525739 is about 136.1850673963.

The spelling of 2525739 in words is "two million, five hundred twenty-five thousand, seven hundred thirty-nine".