2951281725 has 24 divisors (see below), whose sum is σ = 5576518080. Its totient is φ = 1349157120.

The previous prime is 2951281703. The next prime is 2951281769. The reversal of 2951281725 is 5271821592.

It is not a de Polignac number, because 2951281725 - 2⁵ = 2951281693 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2810220 + ... + 2811269.

It is an arithmetic number, because the mean of its divisors is an integer number (232354920).

Almost surely, 2^2951281725 is an apocalyptic number.

2951281725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2951281725 is a deficient number, since it is larger than the sum of its proper divisors (2625236355).

2951281725 is a wasteful number, since it uses less digits than its factorization.

2951281725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5621509 (or 5621504 counting only the distinct ones).

The product of its digits is 100800, while the sum is 42.

The square root of 2951281725 is about 54325.7004096588. The cubic root of 2951281725 is about 1434.3998226679.

The spelling of 2951281725 in words is "two billion, nine hundred fifty-one million, two hundred eighty-one thousand, seven hundred twenty-five".