7953516554 has 4 divisors (see below), whose sum is σ = 11930274834. Its totient is φ = 3976758276.

The previous prime is 7953516553. The next prime is 7953516647. The reversal of 7953516554 is 4556153597.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4556153597 = 373 ⋅12214889.

It can be written as a sum of positive squares in only one way, i.e., 5385358225 + 2568158329 = 73385^2 + 50677^2 .

It is not an unprimeable number, because it can be changed into a prime (7953516551) by changing a digit.

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, 1988379137 + ... + 1988379140.

Almost surely, 2^7953516554 is an apocalyptic number.

7953516554 is a deficient number, since it is larger than the sum of its proper divisors (3976758280).

7953516554 is a wasteful number, since it uses less digits than its factorization.

7953516554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976758279.

The product of its digits is 2835000, while the sum is 50.

The square root of 7953516554 is about 89182.4901760430. The cubic root of 7953516554 is about 1996.1188527198.

The spelling of 7953516554 in words is "seven billion, nine hundred fifty-three million, five hundred sixteen thousand, five hundred fifty-four".