25045143533 has 2 divisors, whose sum is σ = 25045143534. Its totient is φ = 25045143532.

The previous prime is 25045143491. The next prime is 25045143551. The reversal of 25045143533 is 33534154052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23075736649 + 1969406884 = 151907^2 + 44378^2 .

It is a cyclic number.

It is not a de Polignac number, because 25045143533 - 2¹² = 25045139437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25045143493 and 25045143502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25045148533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12522571766 + 12522571767.

It is an arithmetic number, because the mean of its divisors is an integer number (12522571767).

Almost surely, 2^25045143533 is an apocalyptic number.

It is an amenable number.

25045143533 is a deficient number, since it is larger than the sum of its proper divisors (1).

25045143533 is an equidigital number, since it uses as much as digits as its factorization.

25045143533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 25045143533 its reverse (33534154052), we get a palindrome (58579297585).

The spelling of 25045143533 in words is "twenty-five billion, forty-five million, one hundred forty-three thousand, five hundred thirty-three".