51485112 has 128 divisors (see below), whose sum is σ = 173145600. Its totient is φ = 13837824.

The previous prime is 51485107. The next prime is 51485113. The reversal of 51485112 is 21158415.

51485112 is a `hidden beast` number, since 5 + 148 + 511 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51485113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24703 + ... + 26705.

It is an arithmetic number, because the mean of its divisors is an integer number (1352700).

Almost surely, 2^51485112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51485112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86572800).

51485112 is an abundant number, since it is smaller than the sum of its proper divisors (121660488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51485112 is a wasteful number, since it uses less digits than its factorization.

51485112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042 (or 2032 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 51485112 is about 7175.3126761138. The cubic root of 51485112 is about 372.0150878376.

The spelling of 51485112 in words is "fifty-one million, four hundred eighty-five thousand, one hundred twelve".