25424369 has 2 divisors, whose sum is σ = 25424370. Its totient is φ = 25424368.

The previous prime is 25424341. The next prime is 25424381. The reversal of 25424369 is 96342452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20584369 + 4840000 = 4537^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 25424369 - 2¹⁶ = 25358833 is a prime.

It is a super-2 number, since 2×25424369² = 1292797078096322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25424389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12712184 + 12712185.

It is an arithmetic number, because the mean of its divisors is an integer number (12712185).

Almost surely, 2^25424369 is an apocalyptic number.

It is an amenable number.

25424369 is a deficient number, since it is larger than the sum of its proper divisors (1).

25424369 is an equidigital number, since it uses as much as digits as its factorization.

25424369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 25424369 is about 5042.2583234103. The cubic root of 25424369 is about 294.0469829430.

The spelling of 25424369 in words is "twenty-five million, four hundred twenty-four thousand, three hundred sixty-nine".