2505974 has 4 divisors (see below), whose sum is σ = 3758964. Its totient is φ = 1252986.

The previous prime is 2505917. The next prime is 2505983. The reversal of 2505974 is 4795052.

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

It is an Ulam number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 2505974.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626492 + ... + 626495.

It is an arithmetic number, because the mean of its divisors is an integer number (939741).

2^2505974 is an apocalyptic number.

2505974 is a deficient number, since it is larger than the sum of its proper divisors (1252990).

2505974 is a wasteful number, since it uses less digits than its factorization.

2505974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252989.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 2505974 is about 1583.0268475298. The cubic root of 2505974 is about 135.8289010393.

The spelling of 2505974 in words is "two million, five hundred five thousand, nine hundred seventy-four".