2947291825 has 6 divisors (see below), whose sum is σ = 3654641894. Its totient is φ = 2357833440.

The previous prime is 2947291813. The next prime is 2947291849. The reversal of 2947291825 is 5281927492.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 199854769 + 2747437056 = 14137^2 + 52416^2 .

It is not a de Polignac number, because 2947291825 - 2⁹ = 2947291313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58945812 + ... + 58945861.

Almost surely, 2^2947291825 is an apocalyptic number.

2947291825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2947291825 is a deficient number, since it is larger than the sum of its proper divisors (707350069).

2947291825 is a wasteful number, since it uses less digits than its factorization.

2947291825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117891683 (or 117891678 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The square root of 2947291825 is about 54288.9659599444. The cubic root of 2947291825 is about 1433.7531326995.

The spelling of 2947291825 in words is "two billion, nine hundred forty-seven million, two hundred ninety-one thousand, eight hundred twenty-five".