24925921 has 2 divisors, whose sum is σ = 24925922. Its totient is φ = 24925920.

The previous prime is 24925913. The next prime is 24925973. The reversal of 24925921 is 12952942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23571025 + 1354896 = 4855^2 + 1164^2 .

It is a cyclic number.

It is not a de Polignac number, because 24925921 - 2³ = 24925913 is a prime.

It is not a weakly prime, because it can be changed into another prime (24922921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12462960 + 12462961.

It is an arithmetic number, because the mean of its divisors is an integer number (12462961).

Almost surely, 2^24925921 is an apocalyptic number.

It is an amenable number.

24925921 is a deficient number, since it is larger than the sum of its proper divisors (1).

24925921 is an equidigital number, since it uses as much as digits as its factorization.

24925921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 24925921 is about 4992.5866041562. The cubic root of 24925921 is about 292.1126770062.

The spelling of 24925921 in words is "twenty-four million, nine hundred twenty-five thousand, nine hundred twenty-one".