49992499 has 4 divisors (see below), whose sum is σ = 50013936. Its totient is φ = 49971064.

The previous prime is 49992497. The next prime is 49992511. The reversal of 49992499 is 99429994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99429994 = 2 ⋅49714997.

It is a cyclic number.

It is not a de Polignac number, because 49992499 - 2¹ = 49992497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49992497) 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, 6724 + ... + 12049.

It is an arithmetic number, because the mean of its divisors is an integer number (12503484).

Almost surely, 2^49992499 is an apocalyptic number.

49992499 is a deficient number, since it is larger than the sum of its proper divisors (21437).

49992499 is a wasteful number, since it uses less digits than its factorization.

49992499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21436.

The product of its digits is 1889568, while the sum is 55.

The square root of 49992499 is about 7070.5373911747. The cubic root of 49992499 is about 368.3847263292.

It can be divided in two parts, 4999 and 2499, that multiplied together give a triangular number (12492501 = T₄₉₉₈).

The spelling of 49992499 in words is "forty-nine million, nine hundred ninety-two thousand, four hundred ninety-nine".