53505774 has 96 divisors (see below), whose sum is σ = 142272000. Its totient is φ = 14198976.

The previous prime is 53505733. The next prime is 53505799. The reversal of 53505774 is 47750535.

53505774 is a `hidden beast` number, since 535 + 0 + 57 + 74 = 666.

It is a congruent number.

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, 106977 + ... + 107475.

It is an arithmetic number, because the mean of its divisors is an integer number (1482000).

Almost surely, 2^53505774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53505774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71136000).

53505774 is an abundant number, since it is smaller than the sum of its proper divisors (88766226).

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

53505774 is a wasteful number, since it uses less digits than its factorization.

53505774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The square root of 53505774 is about 7314.7641110291. The cubic root of 53505774 is about 376.8196573109.

The spelling of 53505774 in words is "fifty-three million, five hundred five thousand, seven hundred seventy-four".