90548425801 has 2 divisors, whose sum is σ = 90548425802. Its totient is φ = 90548425800.

The previous prime is 90548425783. The next prime is 90548425823. The reversal of 90548425801 is 10852484509.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66281017401 + 24267408400 = 257451^2 + 155780^2 .

It is a cyclic number.

It is not a de Polignac number, because 90548425801 - 2¹¹ = 90548423753 is a prime.

It is not a weakly prime, because it can be changed into another prime (90548425841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45274212900 + 45274212901.

It is an arithmetic number, because the mean of its divisors is an integer number (45274212901).

Almost surely, 2^90548425801 is an apocalyptic number.

It is an amenable number.

90548425801 is a deficient number, since it is larger than the sum of its proper divisors (1).

90548425801 is an equidigital number, since it uses as much as digits as its factorization.

90548425801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 90548425801 in words is "ninety billion, five hundred forty-eight million, four hundred twenty-five thousand, eight hundred one".