25948033537 has 2 divisors, whose sum is σ = 25948033538. Its totient is φ = 25948033536.

The previous prime is 25948033469. The next prime is 25948033603. The reversal of 25948033537 is 73533084952.

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., 21686685696 + 4261347841 = 147264^2 + 65279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25948033537 is a prime.

It is not a weakly prime, because it can be changed into another prime (25948033337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12974016768 + 12974016769.

It is an arithmetic number, because the mean of its divisors is an integer number (12974016769).

Almost surely, 2^25948033537 is an apocalyptic number.

It is an amenable number.

25948033537 is a deficient number, since it is larger than the sum of its proper divisors (1).

25948033537 is an equidigital number, since it uses as much as digits as its factorization.

25948033537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 25948033537 in words is "twenty-five billion, nine hundred forty-eight million, thirty-three thousand, five hundred thirty-seven".