24955661 has 2 divisors, whose sum is σ = 24955662. Its totient is φ = 24955660.

The previous prime is 24955657. The next prime is 24955669. The reversal of 24955661 is 16655942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24940036 + 15625 = 4994^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 24955661 - 2² = 24955657 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24955669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12477830 + 12477831.

It is an arithmetic number, because the mean of its divisors is an integer number (12477831).

Almost surely, 2^24955661 is an apocalyptic number.

It is an amenable number.

24955661 is a deficient number, since it is larger than the sum of its proper divisors (1).

24955661 is an equidigital number, since it uses as much as digits as its factorization.

24955661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 24955661 is about 4995.5641323078. The cubic root of 24955661 is about 292.2288074956.

The spelling of 24955661 in words is "twenty-four million, nine hundred fifty-five thousand, six hundred sixty-one".