49998551 has 8 divisors (see below), whose sum is σ = 51427200. Its totient is φ = 48582072.

The previous prime is 49998539. The next prime is 49998563. The reversal of 49998551 is 15589994.

It is an interprime number because it is at equal distance from previous prime (49998539) and next prime (49998563).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49998551 is a prime.

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 49998551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49998511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5636 + ... + 11478.

It is an arithmetic number, because the mean of its divisors is an integer number (6428400).

Almost surely, 2^49998551 is an apocalyptic number.

49998551 is a deficient number, since it is larger than the sum of its proper divisors (1428649).

49998551 is a wasteful number, since it uses less digits than its factorization.

49998551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6085.

The product of its digits is 583200, while the sum is 50.

The square root of 49998551 is about 7070.9653513505. The cubic root of 49998551 is about 368.3995910552.

The spelling of 49998551 in words is "forty-nine million, nine hundred ninety-eight thousand, five hundred fifty-one".