51673776 has 240 divisors, whose sum is σ = 177321984. Its totient is φ = 12672000.

The previous prime is 51673763. The next prime is 51673799. The reversal of 51673776 is 67737615.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1260316 + ... + 1260356.

Almost surely, 2^51673776 is an apocalyptic number.

51673776 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51673776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88660992).

51673776 is an abundant number, since it is smaller than the sum of its proper divisors (125648208).

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

51673776 is a wasteful number, since it uses less digits than its factorization.

51673776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 95 counting only the distinct ones).

The product of its digits is 185220, while the sum is 42.

The square root of 51673776 is about 7188.4473984303. The cubic root of 51673776 is about 372.4689426534.

The spelling of 51673776 in words is "fifty-one million, six hundred seventy-three thousand, seven hundred seventy-six".