53274240 has 128 divisors (see below), whose sum is σ = 188740800. Its totient is φ = 14201856.

The previous prime is 53274223. The next prime is 53274241. The reversal of 53274240 is 4247235.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is not an unprimeable number, because it can be changed into a prime (53274241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15739 + ... + 18821.

Almost surely, 2^53274240 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 53274240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94370400).

53274240 is an abundant number, since it is smaller than the sum of its proper divisors (135466560).

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

53274240 is a wasteful number, since it uses less digits than its factorization.

53274240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111 (or 3093 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 53274240 is about 7298.9204681240. The cubic root of 53274240 is about 376.2753377858.

The spelling of 53274240 in words is "fifty-three million, two hundred seventy-four thousand, two hundred forty".