2572518 has 48 divisors (see below), whose sum is σ = 5797440. Its totient is φ = 760032.

The previous prime is 2572517. The next prime is 2572519. The reversal of 2572518 is 8152752.

It is an interprime number because it is at equal distance from previous prime (2572517) and next prime (2572519).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2572513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43573 + ... + 43631.

It is an arithmetic number, because the mean of its divisors is an integer number (120780).

2^2572518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2572518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2898720).

2572518 is an abundant number, since it is smaller than the sum of its proper divisors (3224922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2572518 is a wasteful number, since it uses less digits than its factorization.

2572518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 120 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 2572518 is about 1603.9071045419. The cubic root of 2572518 is about 137.0206870212.

It can be divided in two parts, 257 and 2518, that added together give a triangular number (2775 = T₇₄).

The spelling of 2572518 in words is "two million, five hundred seventy-two thousand, five hundred eighteen".