98516551 has 4 divisors (see below), whose sum is σ = 112590352. Its totient is φ = 84442752.

The previous prime is 98516549. The next prime is 98516557. The reversal of 98516551 is 15561589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15561589 = 19 ⋅819031.

It is a cyclic number.

It is not a de Polignac number, because 98516551 - 2¹ = 98516549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98516557) 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, 7036890 + ... + 7036903.

It is an arithmetic number, because the mean of its divisors is an integer number (28147588).

Almost surely, 2^98516551 is an apocalyptic number.

98516551 is a deficient number, since it is larger than the sum of its proper divisors (14073801).

98516551 is a wasteful number, since it uses less digits than its factorization.

98516551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14073800.

The product of its digits is 54000, while the sum is 40.

The square root of 98516551 is about 9925.5504129494. The cubic root of 98516551 is about 461.8522528125.

The spelling of 98516551 in words is "ninety-eight million, five hundred sixteen thousand, five hundred fifty-one".