2572905 has 16 divisors (see below), whose sum is σ = 4213440. Its totient is φ = 1339968.

The previous prime is 2572877. The next prime is 2572937. The reversal of 2572905 is 5092752.

It is a happy number.

It is not a de Polignac number, because 2572905 - 2⁷ = 2572777 is a prime.

It is an Ulam number.

2572905 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1350 + ... + 2639.

It is an arithmetic number, because the mean of its divisors is an integer number (263340).

2^2572905 is an apocalyptic number.

It is an amenable number.

2572905 is a deficient number, since it is larger than the sum of its proper divisors (1640535).

2572905 is a wasteful number, since it uses less digits than its factorization.

2572905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 2572905 is about 1604.0277429022. The cubic root of 2572905 is about 137.0275576368.

The spelling of 2572905 in words is "two million, five hundred seventy-two thousand, nine hundred five".