25749433 has 2 divisors, whose sum is σ = 25749434. Its totient is φ = 25749432.

The previous prime is 25749431. The next prime is 25749457. The reversal of 25749433 is 33494752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13860729 + 11888704 = 3723^2 + 3448^2 .

It is a cyclic number.

It is not a de Polignac number, because 25749433 - 2¹ = 25749431 is a prime.

Together with 25749431, it forms a pair of twin primes.

It is equal to p_1609795 and since 25749433 and 1609795 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 25749392 and 25749401.

It is not a weakly prime, because it can be changed into another prime (25749431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12874716 + 12874717.

It is an arithmetic number, because the mean of its divisors is an integer number (12874717).

Almost surely, 2^25749433 is an apocalyptic number.

It is an amenable number.

25749433 is a deficient number, since it is larger than the sum of its proper divisors (1).

25749433 is an equidigital number, since it uses as much as digits as its factorization.

25749433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 37.

The square root of 25749433 is about 5074.3899140685. The cubic root of 25749433 is about 295.2948617425.

The spelling of 25749433 in words is "twenty-five million, seven hundred forty-nine thousand, four hundred thirty-three".