98505531 has 32 divisors (see below), whose sum is σ = 155234880. Its totient is φ = 61521408.

The previous prime is 98505529. The next prime is 98505541. The reversal of 98505531 is 13550589.

It is a happy number.

It is not a de Polignac number, because 98505531 - 2¹ = 98505529 is a prime.

It is a super-2 number, since 2×98505531² = 19406679275183922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (98505521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145165 + ... + 145841.

It is an arithmetic number, because the mean of its divisors is an integer number (4851090).

Almost surely, 2^98505531 is an apocalyptic number.

98505531 is a deficient number, since it is larger than the sum of its proper divisors (56729349).

98505531 is a wasteful number, since it uses less digits than its factorization.

98505531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 98505531 is about 9924.9952644825. The cubic root of 98505531 is about 461.8350313353.

The spelling of 98505531 in words is "ninety-eight million, five hundred five thousand, five hundred thirty-one".