90100020951533 has 2 divisors, whose sum is σ = 90100020951534. Its totient is φ = 90100020951532.

The previous prime is 90100020951469. The next prime is 90100020951559. The reversal of 90100020951533 is 33515902000109.

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., 57559807365124 + 32540213586409 = 7586818^2 + 5704403^2 .

It is a cyclic number.

It is not a de Polignac number, because 90100020951533 - 2⁶ = 90100020951469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90100020941533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45050010475766 + 45050010475767.

It is an arithmetic number, because the mean of its divisors is an integer number (45050010475767).

Almost surely, 2^{90100020951533} is an apocalyptic number.

It is an amenable number.

90100020951533 is a deficient number, since it is larger than the sum of its proper divisors (1).

90100020951533 is an equidigital number, since it uses as much as digits as its factorization.

90100020951533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 38.

The spelling of 90100020951533 in words is "ninety trillion, one hundred billion, twenty million, nine hundred fifty-one thousand, five hundred thirty-three".