2533545 has 48 divisors (see below), whose sum is σ = 5253120. Its totient is φ = 1155168.

The previous prime is 2533507. The next prime is 2533549. The reversal of 2533545 is 5453352.

It is not a de Polignac number, because 2533545 - 2⁷ = 2533417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

2533545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2533549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6424 + ... + 6806.

It is an arithmetic number, because the mean of its divisors is an integer number (109440).

2^2533545 is an apocalyptic number.

It is an amenable number.

2533545 is an abundant number, since it is smaller than the sum of its proper divisors (2719575).

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

2533545 is a wasteful number, since it uses less digits than its factorization.

2533545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 398 counting only the distinct ones).

The product of its digits is 9000, while the sum is 27.

The square root of 2533545 is about 1591.7113431775. The cubic root of 2533545 is about 136.3252200875.

Adding to 2533545 its reverse (5453352), we get a palindrome (7986897).

The spelling of 2533545 in words is "two million, five hundred thirty-three thousand, five hundred forty-five".