25507020073 has 2 divisors, whose sum is σ = 25507020074. Its totient is φ = 25507020072.

The previous prime is 25507020067. The next prime is 25507020089. The reversal of 25507020073 is 37002070552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25232687104 + 274332969 = 158848^2 + 16563^2 .

It is a cyclic number.

It is not a de Polignac number, because 25507020073 - 2⁹ = 25507019561 is a prime.

It is a super-3 number, since 3×25507020073³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (25507026073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12753510036 + 12753510037.

It is an arithmetic number, because the mean of its divisors is an integer number (12753510037).

Almost surely, 2^25507020073 is an apocalyptic number.

It is an amenable number.

25507020073 is a deficient number, since it is larger than the sum of its proper divisors (1).

25507020073 is an equidigital number, since it uses as much as digits as its factorization.

25507020073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 31.

The spelling of 25507020073 in words is "twenty-five billion, five hundred seven million, twenty thousand, seventy-three".