2745257 has 4 divisors (see below), whose sum is σ = 2864640. Its totient is φ = 2625876.

The previous prime is 2745251. The next prime is 2745263. The reversal of 2745257 is 7525472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2745251) and next prime (2745263).

It is a cyclic number.

It is not a de Polignac number, because 2745257 - 2¹⁰ = 2744233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2745251) 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, 59657 + ... + 59702.

It is an arithmetic number, because the mean of its divisors is an integer number (716160).

2^2745257 is an apocalyptic number.

It is an amenable number.

2745257 is a deficient number, since it is larger than the sum of its proper divisors (119383).

2745257 is a wasteful number, since it uses less digits than its factorization.

2745257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119382.

The product of its digits is 19600, while the sum is 32.

The square root of 2745257 is about 1656.8817097186. The cubic root of 2745257 is about 140.0213742876.

The spelling of 2745257 in words is "two million, seven hundred forty-five thousand, two hundred fifty-seven".