2051625 has 16 divisors (see below), whose sum is σ = 3414528. Its totient is φ = 1094000.

The previous prime is 2051617. The next prime is 2051627. The reversal of 2051625 is 5261502.

It is not a de Polignac number, because 2051625 - 2³ = 2051617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2361 + ... + 3110.

It is an arithmetic number, because the mean of its divisors is an integer number (213408).

2^2051625 is an apocalyptic number.

2051625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2051625 is a deficient number, since it is larger than the sum of its proper divisors (1362903).

2051625 is an equidigital number, since it uses as much as digits as its factorization.

2051625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5489 (or 5479 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2051625 is about 1432.3494685306. The cubic root of 2051625 is about 127.0669661504.

It can be divided in two parts, 205 and 1625, that added together give a triangular number (1830 = T₆₀).

The spelling of 2051625 in words is "two million, fifty-one thousand, six hundred twenty-five".