2505725706 has 16 divisors (see below), whose sum is σ = 5467038048. Its totient is φ = 759310800.

The previous prime is 2505725689. The next prime is 2505725723. The reversal of 2505725706 is 6075275052.

It is an interprime number because it is at equal distance from previous prime (2505725689) and next prime (2505725723).

It is a super-2 number, since 2×2505725706² = 12557322627418396872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18982705 + ... + 18982836.

It is an arithmetic number, because the mean of its divisors is an integer number (341689878).

Almost surely, 2^2505725706 is an apocalyptic number.

2505725706 is an abundant number, since it is smaller than the sum of its proper divisors (2961312342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2505725706 is a wasteful number, since it uses less digits than its factorization.

2505725706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37965557.

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 2505725706 is about 50057.2243137791. The cubic root of 2505725706 is about 1358.2441487742.

The spelling of 2505725706 in words is "two billion, five hundred five million, seven hundred twenty-five thousand, seven hundred six".