90825219401 has 4 divisors (see below), whose sum is σ = 103800250752. Its totient is φ = 77850188052.

The previous prime is 90825219389. The next prime is 90825219413. The reversal of 90825219401 is 10491252809.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (90825219389) and next prime (90825219413).

It is not a de Polignac number, because 90825219401 - 2¹⁰ = 90825218377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90825210401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6487515665 + ... + 6487515678.

It is an arithmetic number, because the mean of its divisors is an integer number (25950062688).

Almost surely, 2^90825219401 is an apocalyptic number.

It is an amenable number.

90825219401 is a deficient number, since it is larger than the sum of its proper divisors (12975031351).

90825219401 is a wasteful number, since it uses less digits than its factorization.

90825219401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12975031350.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 90825219401 in words is "ninety billion, eight hundred twenty-five million, two hundred nineteen thousand, four hundred one".