2152440506 has 4 divisors (see below), whose sum is σ = 3228660762. Its totient is φ = 1076220252.

The previous prime is 2152440491. The next prime is 2152440527. The reversal of 2152440506 is 6050442512.

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., 1794284881 + 358155625 = 42359^2 + 18925^2 .

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, 538110125 + ... + 538110128.

Almost surely, 2^2152440506 is an apocalyptic number.

2152440506 is a deficient number, since it is larger than the sum of its proper divisors (1076220256).

2152440506 is a wasteful number, since it uses less digits than its factorization.

2152440506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076220255.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2152440506 is about 46394.4016665804. The cubic root of 2152440506 is about 1291.1510480274.

The spelling of 2152440506 in words is "two billion, one hundred fifty-two million, four hundred forty thousand, five hundred six".