51173424 has 40 divisors (see below), whose sum is σ = 146887920. Its totient is φ = 17057664.

The previous prime is 51173411. The next prime is 51173443. The reversal of 51173424 is 42437115.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58797 + ... + 59660.

It is an arithmetic number, because the mean of its divisors is an integer number (3672198).

Almost surely, 2^51173424 is an apocalyptic number.

51173424 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

51173424 is an abundant number, since it is smaller than the sum of its proper divisors (95714496).

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

51173424 is a wasteful number, since it uses less digits than its factorization.

51173424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118474 (or 118462 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 51173424 is about 7153.5602324996. The cubic root of 51173424 is about 371.2628482443.

The spelling of 51173424 in words is "fifty-one million, one hundred seventy-three thousand, four hundred twenty-four".