2505398 has 16 divisors (see below), whose sum is σ = 4360704. Its totient is φ = 1057320.

The previous prime is 2505383. The next prime is 2505401. The reversal of 2505398 is 8935052.

It is a happy number.

It is a d-powerful number, because it can be written as 2¹⁰ + 5⁶ + 0 + 5⁸ + 3⁵ + 9³ + 8⁷ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398 + ... + 2273.

It is an arithmetic number, because the mean of its divisors is an integer number (272544).

2^2505398 is an apocalyptic number.

2505398 is a deficient number, since it is larger than the sum of its proper divisors (1855306).

2505398 is a wasteful number, since it uses less digits than its factorization.

2505398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 2505398 is about 1582.8449071214. The cubic root of 2505398 is about 135.8184934503.

The spelling of 2505398 in words is "two million, five hundred five thousand, three hundred ninety-eight".