90057404317 has 4 divisors (see below), whose sum is σ = 90139499676. Its totient is φ = 89975308960.

The previous prime is 90057404287. The next prime is 90057404347. The reversal of 90057404317 is 71340475009.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (90057404287) and next prime (90057404347).

It can be written as a sum of positive squares in 2 ways, for example, as 26760379396 + 63297024921 = 163586^2 + 251589^2 .

It is a cyclic number.

It is not a de Polignac number, because 90057404317 - 2²³ = 90049015709 is a prime.

It is a super-2 number, since 2×90057404317² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90057404317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90057404347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41046034 + ... + 41048227.

It is an arithmetic number, because the mean of its divisors is an integer number (22534874919).

Almost surely, 2^90057404317 is an apocalyptic number.

It is an amenable number.

90057404317 is a deficient number, since it is larger than the sum of its proper divisors (82095359).

90057404317 is a wasteful number, since it uses less digits than its factorization.

90057404317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82095358.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 90057404317 in words is "ninety billion, fifty-seven million, four hundred four thousand, three hundred seventeen".