53435520 has 96 divisors (see below), whose sum is σ = 184539420. Its totient is φ = 14247936.

The previous prime is 53435513. The next prime is 53435531. The reversal of 53435520 is 2553435.

It can be written as a sum of positive squares in 2 ways, for example, as 52881984 + 553536 = 7272^2 + 744^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1122 + ... + 10398.

Almost surely, 2^53435520 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 53435520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92269710).

53435520 is an abundant number, since it is smaller than the sum of its proper divisors (131103900).

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

53435520 is a wasteful number, since it uses less digits than its factorization.

53435520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9302 (or 9287 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 53435520 is about 7309.9603282097. The cubic root of 53435520 is about 376.6546615155.

Adding to 53435520 its reverse (2553435), we get a palindrome (55988955).

The spelling of 53435520 in words is "fifty-three million, four hundred thirty-five thousand, five hundred twenty".