2571625 has 16 divisors (see below), whose sum is σ = 3669120. Its totient is φ = 1762800.

The previous prime is 2571619. The next prime is 2571649. The reversal of 2571625 is 5261752.

It is not a de Polignac number, because 2571625 - 2⁷ = 2571497 is a prime.

It is a super-2 number, since 2×2571625² = 13226510281250, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2571593 and 2571602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595 + ... + 2344.

It is an arithmetic number, because the mean of its divisors is an integer number (229320).

2^2571625 is an apocalyptic number.

2571625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2571625 is a deficient number, since it is larger than the sum of its proper divisors (1097495).

2571625 is an equidigital number, since it uses as much as digits as its factorization.

2571625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961 (or 2951 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 2571625 is about 1603.6286976729. The cubic root of 2571625 is about 137.0048304902.

The spelling of 2571625 in words is "two million, five hundred seventy-one thousand, six hundred twenty-five".