2515442 has 4 divisors (see below), whose sum is σ = 3773166. Its totient is φ = 1257720.

The previous prime is 2515427. The next prime is 2515451. The reversal of 2515442 is 2445152.

It is a happy number.

2515442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 2493241 + 22201 = 1579^2 + 149^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628859 + ... + 628862.

2^2515442 is an apocalyptic number.

2515442 is a deficient number, since it is larger than the sum of its proper divisors (1257724).

2515442 is a wasteful number, since it uses less digits than its factorization.

2515442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257723.

The product of its digits is 1600, while the sum is 23.

The square root of 2515442 is about 1586.0145018253. The cubic root of 2515442 is about 135.9997476927. Note that the first 3 decimals are identical.

The spelling of 2515442 in words is "two million, five hundred fifteen thousand, four hundred forty-two".