2991056475 has 144 divisors (see below), whose sum is σ = 5809878144. Its totient is φ = 1357329600.

The previous prime is 2991056447. The next prime is 2991056503. The reversal of 2991056475 is 5746501992.

It is an interprime number because it is at equal distance from previous prime (2991056447) and next prime (2991056503).

It is not a de Polignac number, because 2991056475 - 2⁵ = 2991056443 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 36036784 + ... + 36036866.

It is an arithmetic number, because the mean of its divisors is an integer number (40346376).

Almost surely, 2^2991056475 is an apocalyptic number.

2991056475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2991056475 is a deficient number, since it is larger than the sum of its proper divisors (2818821669).

2991056475 is a wasteful number, since it uses less digits than its factorization.

2991056475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 48.

The square root of 2991056475 is about 54690.5519719814. The cubic root of 2991056475 is about 1440.8149442835.

The spelling of 2991056475 in words is "two billion, nine hundred ninety-one million, fifty-six thousand, four hundred seventy-five".