2571925 has 6 divisors (see below), whose sum is σ = 3189218. Its totient is φ = 2057520.

The previous prime is 2571911. The next prime is 2571937. The reversal of 2571925 is 5291752.

It can be written as a sum of positive squares in 3 ways, for example, as 339889 + 2232036 = 583^2 + 1494^2 .

It is not a de Polignac number, because 2571925 - 2⁵ = 2571893 is a prime.

It is a super-2 number, since 2×2571925² = 13229596411250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 51414 + ... + 51463.

2^2571925 is an apocalyptic number.

2571925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2571925 is a deficient number, since it is larger than the sum of its proper divisors (617293).

2571925 is a wasteful number, since it uses less digits than its factorization.

2571925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102887 (or 102882 counting only the distinct ones).

The product of its digits is 6300, while the sum is 31.

The square root of 2571925 is about 1603.7222328072. The cubic root of 2571925 is about 137.0101578417.

The spelling of 2571925 in words is "two million, five hundred seventy-one thousand, nine hundred twenty-five".