49811511 has 8 divisors (see below), whose sum is σ = 66561264. Its totient is φ = 33134720.

The previous prime is 49811471. The next prime is 49811519. The reversal of 49811511 is 11511894.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 49811511 - 2⁷ = 49811383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49811519) 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, 16626 + ... + 19391.

It is an arithmetic number, because the mean of its divisors is an integer number (8320158).

Almost surely, 2^49811511 is an apocalyptic number.

49811511 is a deficient number, since it is larger than the sum of its proper divisors (16749753).

49811511 is a wasteful number, since it uses less digits than its factorization.

49811511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36481.

The product of its digits is 1440, while the sum is 30.

The square root of 49811511 is about 7057.7270420441. The cubic root of 49811511 is about 367.9396339821.

The spelling of 49811511 in words is "forty-nine million, eight hundred eleven thousand, five hundred eleven".