90402633025601 has 4 divisors (see below), whose sum is σ = 97356681719892. Its totient is φ = 83448584331312.

The previous prime is 90402633025591. The next prime is 90402633025633. The reversal of 90402633025601 is 10652033620409.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13307911296001 + 77094721729600 = 3648001^2 + 8780360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90402633025601 is a prime.

It is a super-2 number, since 2×90402633025601² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90402633025651) 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, 3477024347126 + ... + 3477024347151.

It is an arithmetic number, because the mean of its divisors is an integer number (24339170429973).

Almost surely, 2^{90402633025601} is an apocalyptic number.

It is an amenable number.

90402633025601 is a deficient number, since it is larger than the sum of its proper divisors (6954048694291).

90402633025601 is a wasteful number, since it uses less digits than its factorization.

90402633025601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6954048694290.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 90402633025601 in words is "ninety trillion, four hundred two billion, six hundred thirty-three million, twenty-five thousand, six hundred one".