24971530 has 16 divisors (see below), whose sum is σ = 45044424. Its totient is φ = 9967360.

The previous prime is 24971497. The next prime is 24971561. The reversal of 24971530 is 3517942.

It can be written as a sum of positive squares in 4 ways, for example, as 21706281 + 3265249 = 4659^2 + 1807^2 .

It is a junction number, because it is equal to n+sod(n) for n = 24971492 and 24971501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2814 + ... + 7606.

It is a vampire number, since it can be written as 4793 ⋅ 5210 (with its own digits).

Almost surely, 2^24971530 is an apocalyptic number.

24971530 is a deficient number, since it is larger than the sum of its proper divisors (20072894).

24971530 is a wasteful number, since it uses less digits than its factorization.

24971530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5321.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 24971530 is about 4997.1521889972. The cubic root of 24971530 is about 292.2907359473.

The spelling of 24971530 in words is "twenty-four million, nine hundred seventy-one thousand, five hundred thirty".