2515223042 has 4 divisors (see below), whose sum is σ = 3772834566. Its totient is φ = 1257611520.

The previous prime is 2515223033. The next prime is 2515223057. The reversal of 2515223042 is 2403225152.

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., 2490908281 + 24314761 = 49909^2 + 4931^2 .

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, 628805759 + ... + 628805762.

Almost surely, 2^2515223042 is an apocalyptic number.

2515223042 is a deficient number, since it is larger than the sum of its proper divisors (1257611524).

2515223042 is a wasteful number, since it uses less digits than its factorization.

2515223042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257611523.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2515223042 is about 50151.9993818791. Note that the first 3 decimals coincide. The cubic root of 2515223042 is about 1359.9580152120.

Adding to 2515223042 its reverse (2403225152), we get a palindrome (4918448194).

The spelling of 2515223042 in words is "two billion, five hundred fifteen million, two hundred twenty-three thousand, forty-two".