2523531 has 8 divisors (see below), whose sum is σ = 3562704. Its totient is φ = 1583360.

The previous prime is 2523529. The next prime is 2523533. The reversal of 2523531 is 1353252.

It is an interprime number because it is at equal distance from previous prime (2523529) and next prime (2523533).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2523531 - 2¹ = 2523529 is a prime.

It is a super-2 number, since 2×2523531² = 12736417415922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2523498 and 2523507.

It is not an unprimeable number, because it can be changed into a prime (2523533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24690 + ... + 24791.

It is an arithmetic number, because the mean of its divisors is an integer number (445338).

2^2523531 is an apocalyptic number.

2523531 is a deficient number, since it is larger than the sum of its proper divisors (1039173).

2523531 is a wasteful number, since it uses less digits than its factorization.

2523531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49501.

The product of its digits is 900, while the sum is 21.

The square root of 2523531 is about 1588.5625577861. The cubic root of 2523531 is about 136.1453715166.

Adding to 2523531 its reverse (1353252), we get a palindrome (3876783).

The spelling of 2523531 in words is "two million, five hundred twenty-three thousand, five hundred thirty-one".