52491000157 has 2 divisors, whose sum is σ = 52491000158. Its totient is φ = 52491000156.

The previous prime is 52491000097. The next prime is 52491000227. The reversal of 52491000157 is 75100019425.

52491000157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28554578361 + 23936421796 = 168981^2 + 154714^2 .

It is a cyclic number.

It is not a de Polignac number, because 52491000157 - 2³⁵ = 18131261789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52491600157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26245500078 + 26245500079.

It is an arithmetic number, because the mean of its divisors is an integer number (26245500079).

Almost surely, 2^52491000157 is an apocalyptic number.

It is an amenable number.

52491000157 is a deficient number, since it is larger than the sum of its proper divisors (1).

52491000157 is an equidigital number, since it uses as much as digits as its factorization.

52491000157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 52491000157 in words is "fifty-two billion, four hundred ninety-one million, one hundred fifty-seven", and thus it is an aban number.