51554688 has 32 divisors (see below), whose sum is σ = 136943160. Its totient is φ = 17184768.

The previous prime is 51554641. The next prime is 51554719. The reversal of 51554688 is 88645515.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66745 + ... + 67512.

Almost surely, 2^51554688 is an apocalyptic number.

It is an amenable number.

51554688 is an abundant number, since it is smaller than the sum of its proper divisors (85388472).

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

51554688 is a wasteful number, since it uses less digits than its factorization.

51554688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134274 (or 134262 counting only the distinct ones).

The product of its digits is 192000, while the sum is 42.

The square root of 51554688 is about 7180.1593297085. The cubic root of 51554688 is about 372.1825904423.

The spelling of 51554688 in words is "fifty-one million, five hundred fifty-four thousand, six hundred eighty-eight".