90525163853 has 2 divisors, whose sum is σ = 90525163854. Its totient is φ = 90525163852.

The previous prime is 90525163843. The next prime is 90525163891. The reversal of 90525163853 is 35836152509.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90301452004 + 223711849 = 300502^2 + 14957^2 .

It is a cyclic number.

It is not a de Polignac number, because 90525163853 - 2¹⁴ = 90525147469 is a prime.

It is a super-2 number, since 2×90525163853² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90525163798 and 90525163807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90525163843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45262581926 + 45262581927.

It is an arithmetic number, because the mean of its divisors is an integer number (45262581927).

Almost surely, 2^90525163853 is an apocalyptic number.

It is an amenable number.

90525163853 is a deficient number, since it is larger than the sum of its proper divisors (1).

90525163853 is an equidigital number, since it uses as much as digits as its factorization.

90525163853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 90525163853 in words is "ninety billion, five hundred twenty-five million, one hundred sixty-three thousand, eight hundred fifty-three".