2513765 has 8 divisors (see below), whose sum is σ = 3030048. Its totient is φ = 2002000.

The previous prime is 2513761. The next prime is 2513801. The reversal of 2513765 is 5673152.

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

It is not a de Polignac number, because 2513765 - 2² = 2513761 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513761) 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, 254 + ... + 2256.

It is an arithmetic number, because the mean of its divisors is an integer number (378756).

2^2513765 is an apocalyptic number.

It is an amenable number.

2513765 is a deficient number, since it is larger than the sum of its proper divisors (516283).

2513765 is a wasteful number, since it uses less digits than its factorization.

2513765 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 digits is 6300, while the sum is 29.

The square root of 2513765 is about 1585.4857299894. The cubic root of 2513765 is about 135.9695181109.

The spelling of 2513765 in words is "two million, five hundred thirteen thousand, seven hundred sixty-five".