2928557725 has 6 divisors (see below), whose sum is σ = 3631411610. Its totient is φ = 2342846160.

The previous prime is 2928557719. The next prime is 2928557743. The reversal of 2928557725 is 5277558292.

It can be written as a sum of positive squares in 3 ways, for example, as 945993049 + 1982564676 = 30757^2 + 44526^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2928557725 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58571130 + ... + 58571179.

Almost surely, 2^2928557725 is an apocalyptic number.

2928557725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2928557725 is a deficient number, since it is larger than the sum of its proper divisors (702853885).

2928557725 is a wasteful number, since it uses less digits than its factorization.

2928557725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117142319 (or 117142314 counting only the distinct ones).

The product of its digits is 3528000, while the sum is 52.

The square root of 2928557725 is about 54116.1503157791. The cubic root of 2928557725 is about 1430.7088478764.

The spelling of 2928557725 in words is "two billion, nine hundred twenty-eight million, five hundred fifty-seven thousand, seven hundred twenty-five".