2500401 has 4 divisors (see below), whose sum is σ = 3333872. Its totient is φ = 1666932.

The previous prime is 2500363. The next prime is 2500403. The reversal of 2500401 is 1040052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2500401 - 2⁷ = 2500273 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416731 + ... + 416736.

It is an arithmetic number, because the mean of its divisors is an integer number (833468).

2^2500401 is an apocalyptic number.

It is an amenable number.

2500401 is a deficient number, since it is larger than the sum of its proper divisors (833471).

2500401 is an equidigital number, since it uses as much as digits as its factorization.

2500401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833470.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2500401 is about 1581.2656323338. The cubic root of 2500401 is about 135.7281369849.

Adding to 2500401 its reverse (1040052), we get a palindrome (3540453).

The spelling of 2500401 in words is "two million, five hundred thousand, four hundred one".