51775488 has 108 divisors (see below), whose sum is σ = 152411805. Its totient is φ = 16932864.

The previous prime is 51775463. The next prime is 51775501. The reversal of 51775488 is 88457715.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

51775488 is a `hidden beast` number, since 517 + 7 + 54 + 88 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 49112064 + 2663424 = 7008^2 + 1632^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5088.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 976870 + ... + 976922.

Almost surely, 2^51775488 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 51775488

51775488 is an abundant number, since it is smaller than the sum of its proper divisors (100636317).

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

51775488 is an equidigital number, since it uses as much as digits as its factorization.

51775488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 58 counting only the distinct ones).

The product of its digits is 313600, while the sum is 45.

The square root of 51775488 is about 7195.5186053543. The cubic root of 51775488 is about 372.7131653810.

The spelling of 51775488 in words is "fifty-one million, seven hundred seventy-five thousand, four hundred eighty-eight".