2572403 has 4 divisors (see below), whose sum is σ = 2582448. Its totient is φ = 2562360.

The previous prime is 2572399. The next prime is 2572417. The reversal of 2572403 is 3042752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2572403 - 2² = 2572399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2572433) 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, 4628 + ... + 5153.

It is an arithmetic number, because the mean of its divisors is an integer number (645612).

2^2572403 is an apocalyptic number.

2572403 is a deficient number, since it is larger than the sum of its proper divisors (10045).

2572403 is an equidigital number, since it uses as much as digits as its factorization.

2572403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10044.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2572403 is about 1603.8712541847. The cubic root of 2572403 is about 137.0186452326.

The spelling of 2572403 in words is "two million, five hundred seventy-two thousand, four hundred three".