25201993 has 2 divisors, whose sum is σ = 25201994. Its totient is φ = 25201992.

The previous prime is 25201987. The next prime is 25202029. The reversal of 25201993 is 39910252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25130169 + 71824 = 5013^2 + 268^2 .

It is a cyclic number.

It is not a de Polignac number, because 25201993 - 2¹³ = 25193801 is a prime.

It is not a weakly prime, because it can be changed into another prime (25201903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12600996 + 12600997.

It is an arithmetic number, because the mean of its divisors is an integer number (12600997).

Almost surely, 2^25201993 is an apocalyptic number.

It is an amenable number.

25201993 is a deficient number, since it is larger than the sum of its proper divisors (1).

25201993 is an equidigital number, since it uses as much as digits as its factorization.

25201993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 25201993 is about 5020.1586628313. The cubic root of 25201993 is about 293.1871704955.

The spelling of 25201993 in words is "twenty-five million, two hundred one thousand, nine hundred ninety-three".