48111999 has 8 divisors (see below), whose sum is σ = 69083952. Its totient is φ = 29607360.

The previous prime is 48111979. The next prime is 48112003. The reversal of 48111999 is 99911184.

It is a happy number.

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

It is not a de Polignac number, because 48111999 - 2⁵ = 48111967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48111999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48111919) 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, 616782 + ... + 616859.

It is an arithmetic number, because the mean of its divisors is an integer number (8635494).

Almost surely, 2^48111999 is an apocalyptic number.

48111999 is a deficient number, since it is larger than the sum of its proper divisors (20971953).

48111999 is a wasteful number, since it uses less digits than its factorization.

48111999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233657.

The product of its digits is 23328, while the sum is 42.

The square root of 48111999 is about 6936.2813524251. The cubic root of 48111999 is about 363.7065596853.

The spelling of 48111999 in words is "forty-eight million, one hundred eleven thousand, nine hundred ninety-nine".