2547385 has 4 divisors (see below), whose sum is σ = 3056868. Its totient is φ = 2037904.

The previous prime is 2547361. The next prime is 2547397. The reversal of 2547385 is 5837452.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 937024 + 1610361 = 968^2 + 1269^2 .

It is a cyclic number.

It is not a de Polignac number, because 2547385 - 2⁷ = 2547257 is a prime.

It is a Duffinian number.

2547385 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2547385.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254734 + ... + 254743.

It is an arithmetic number, because the mean of its divisors is an integer number (764217).

2^2547385 is an apocalyptic number.

It is an amenable number.

2547385 is a deficient number, since it is larger than the sum of its proper divisors (509483).

2547385 is an equidigital number, since it uses as much as digits as its factorization.

2547385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509482.

The product of its digits is 33600, while the sum is 34.

The square root of 2547385 is about 1596.0529439840. The cubic root of 2547385 is about 136.5730041038.

The spelling of 2547385 in words is "two million, five hundred forty-seven thousand, three hundred eighty-five".