49918511 has 4 divisors (see below), whose sum is σ = 52854912. Its totient is φ = 46982112.

The previous prime is 49918499. The next prime is 49918523. The reversal of 49918511 is 11581994.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (49918499) and next prime (49918523).

It is a cyclic number.

It is not a de Polignac number, because 49918511 - 2¹⁰ = 49917487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49918811) 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, 1468175 + ... + 1468208.

It is an arithmetic number, because the mean of its divisors is an integer number (13213728).

Almost surely, 2^49918511 is an apocalyptic number.

49918511 is a deficient number, since it is larger than the sum of its proper divisors (2936401).

49918511 is a wasteful number, since it uses less digits than its factorization.

49918511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936400.

The product of its digits is 12960, while the sum is 38.

The square root of 49918511 is about 7065.3033197450. The cubic root of 49918511 is about 368.2029023429.

The spelling of 49918511 in words is "forty-nine million, nine hundred eighteen thousand, five hundred eleven".