2525401 has 8 divisors (see below), whose sum is σ = 2694600. Its totient is φ = 2358528.

The previous prime is 2525389. The next prime is 2525417. The reversal of 2525401 is 1045252.

It can be written as a sum of positive squares in 4 ways, for example, as 632025 + 1893376 = 795^2 + 1376^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2525401 - 2⁷ = 2525273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2525701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2035 + ... + 3031.

It is an arithmetic number, because the mean of its divisors is an integer number (336825).

2^2525401 is an apocalyptic number.

It is an amenable number.

2525401 is a deficient number, since it is larger than the sum of its proper divisors (169199).

2525401 is a wasteful number, since it uses less digits than its factorization.

2525401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2525401 is about 1589.1510312113. The cubic root of 2525401 is about 136.1789922626.

It can be divided in two parts, 2525 and 401, that added together give a triangular number (2926 = T₇₆).

The spelling of 2525401 in words is "two million, five hundred twenty-five thousand, four hundred one".