2545536 has 64 divisors (see below), whose sum is σ = 7735680. Its totient is φ = 726528.

The previous prime is 2545523. The next prime is 2545553. The reversal of 2545536 is 6355452.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×2545536³ = 49483337624576851968, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2215 + ... + 3161.

It is an arithmetic number, because the mean of its divisors is an integer number (120870).

2^2545536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2545536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3867840).

2545536 is an abundant number, since it is smaller than the sum of its proper divisors (5190144).

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

2545536 is an equidigital number, since it uses as much as digits as its factorization.

2545536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 959 counting only the distinct ones).

The product of its digits is 18000, while the sum is 30.

The square root of 2545536 is about 1595.4735973998. The cubic root of 2545536 is about 136.5399526142.

It can be divided in two parts, 2545 and 536, that added together give a triangular number (3081 = T₇₈).

The spelling of 2545536 in words is "two million, five hundred forty-five thousand, five hundred thirty-six".