48551985 has 24 divisors (see below), whose sum is σ = 85587840. Its totient is φ = 25454112.

The previous prime is 48551977. The next prime is 48551989. The reversal of 48551985 is 58915584.

It is a happy number.

48551985 is a `hidden beast` number, since 4 + 8 + 551 + 98 + 5 = 666.

It is not a de Polignac number, because 48551985 - 2³ = 48551977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 48551985.

It is not an unprimeable number, because it can be changed into a prime (48551989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6489 + ... + 11798.

It is an arithmetic number, because the mean of its divisors is an integer number (3566160).

Almost surely, 2^48551985 is an apocalyptic number.

48551985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

48551985 is a deficient number, since it is larger than the sum of its proper divisors (37035855).

48551985 is a wasteful number, since it uses less digits than its factorization.

48551985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18357 (or 18354 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The square root of 48551985 is about 6967.9254444921. The cubic root of 48551985 is about 364.8119003288.

The spelling of 48551985 in words is "forty-eight million, five hundred fifty-one thousand, nine hundred eighty-five".