90053980 has 12 divisors (see below), whose sum is σ = 189113400. Its totient is φ = 36021584.

The previous prime is 90053969. The next prime is 90053983. The reversal of 90053980 is 8935009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90053983) 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, 2251330 + ... + 2251369.

It is an arithmetic number, because the mean of its divisors is an integer number (15759450).

Almost surely, 2^90053980 is an apocalyptic number.

It is an amenable number.

90053980 is an abundant number, since it is smaller than the sum of its proper divisors (99059420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90053980 is a wasteful number, since it uses less digits than its factorization.

90053980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502708 (or 4502706 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 90053980 is about 9489.6775498433. The cubic root of 90053980 is about 448.2300516487.

Adding to 90053980 its reverse (8935009), we get a palindrome (98988989).

The spelling of 90053980 in words is "ninety million, fifty-three thousand, nine hundred eighty".