25419533 has 2 divisors, whose sum is σ = 25419534. Its totient is φ = 25419532.

The previous prime is 25419517. The next prime is 25419551. The reversal of 25419533 is 33591452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13675204 + 11744329 = 3698^2 + 3427^2 .

It is a cyclic number.

It is not a de Polignac number, because 25419533 - 2⁴ = 25419517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25419533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25419503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12709766 + 12709767.

It is an arithmetic number, because the mean of its divisors is an integer number (12709767).

Almost surely, 2^25419533 is an apocalyptic number.

It is an amenable number.

25419533 is a deficient number, since it is larger than the sum of its proper divisors (1).

25419533 is an equidigital number, since it uses as much as digits as its factorization.

25419533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 32.

The square root of 25419533 is about 5041.7787535750. The cubic root of 25419533 is about 294.0283380832.

It can be divided in two parts, 25419 and 533, that added together give a palindrome (25952).

The spelling of 25419533 in words is "twenty-five million, four hundred nineteen thousand, five hundred thirty-three".