2559405 has 8 divisors (see below), whose sum is σ = 4095072. Its totient is φ = 1365008.

The previous prime is 2559397. The next prime is 2559409. The reversal of 2559405 is 5049552.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2559405 - 2³ = 2559397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2559409) 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, 85299 + ... + 85328.

It is an arithmetic number, because the mean of its divisors is an integer number (511884).

2^2559405 is an apocalyptic number.

It is an amenable number.

2559405 is a deficient number, since it is larger than the sum of its proper divisors (1535667).

2559405 is a wasteful number, since it uses less digits than its factorization.

2559405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170635.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 2559405 is about 1599.8140516948. The cubic root of 2559405 is about 136.7874766245.

The spelling of 2559405 in words is "two million, five hundred fifty-nine thousand, four hundred five".