2532621 has 16 divisors (see below), whose sum is σ = 4156544. Its totient is φ = 1335744.

The previous prime is 2532601. The next prime is 2532637. The reversal of 2532621 is 1262352.

It is not a de Polignac number, because 2532621 - 2⁷ = 2532493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2532601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4366 + ... + 4911.

It is an arithmetic number, because the mean of its divisors is an integer number (259784).

2^2532621 is an apocalyptic number.

2532621 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2532621 is a deficient number, since it is larger than the sum of its proper divisors (1623923).

2532621 is a wasteful number, since it uses less digits than its factorization.

2532621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9300.

The product of its digits is 720, while the sum is 21.

The square root of 2532621 is about 1591.4210630754. The cubic root of 2532621 is about 136.3086451803.

Adding to 2532621 its reverse (1262352), we get a palindrome (3794973).

The spelling of 2532621 in words is "two million, five hundred thirty-two thousand, six hundred twenty-one".