53074440 has 80 divisors (see below), whose sum is σ = 178399980. Its totient is φ = 14152320.

The previous prime is 53074393. The next prime is 53074451. The reversal of 53074440 is 4447035.

It can be written as a sum of positive squares in 2 ways, for example, as 42693156 + 10381284 = 6534^2 + 3222^2 .

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

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 4951 + ... + 11430.

Almost surely, 2^53074440 is an apocalyptic number.

It is an amenable number.

53074440 is an abundant number, since it is smaller than the sum of its proper divisors (125325540).

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

53074440 is a wasteful number, since it uses less digits than its factorization.

53074440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16404 (or 16391 counting only the distinct ones).

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

The square root of 53074440 is about 7285.2206555464. The cubic root of 53074440 is about 375.8043534744.

The spelling of 53074440 in words is "fifty-three million, seventy-four thousand, four hundred forty".