24990649 has 2 divisors, whose sum is σ = 24990650. Its totient is φ = 24990648.

The previous prime is 24990617. The next prime is 24990659. The reversal of 24990649 is 94609942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13191424 + 11799225 = 3632^2 + 3435^2 .

It is a cyclic number.

It is not a de Polignac number, because 24990649 - 2⁵ = 24990617 is a prime.

It is not a weakly prime, because it can be changed into another prime (24990659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12495324 + 12495325.

It is an arithmetic number, because the mean of its divisors is an integer number (12495325).

Almost surely, 2^24990649 is an apocalyptic number.

It is an amenable number.

24990649 is a deficient number, since it is larger than the sum of its proper divisors (1).

24990649 is an equidigital number, since it uses as much as digits as its factorization.

24990649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 24990649 is about 4999.0648125424. The cubic root of 24990649 is about 292.3653126218.

The spelling of 24990649 in words is "twenty-four million, nine hundred ninety thousand, six hundred forty-nine".