53426520 has 256 divisors, whose sum is σ = 210124800. Its totient is φ = 11819520.

The previous prime is 53426507. The next prime is 53426521. The reversal of 53426520 is 2562435.

53426520 is a `hidden beast` number, since 5 + 3 + 4 + 2 + 652 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53426521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 279625 + ... + 279815.

It is an arithmetic number, because the mean of its divisors is an integer number (820800).

Almost surely, 2^53426520 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 53426520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105062400).

53426520 is an abundant number, since it is smaller than the sum of its proper divisors (156698280).

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

53426520 is a wasteful number, since it uses less digits than its factorization.

53426520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 53426520 is about 7309.3447038705. The cubic root of 53426520 is about 376.6335140198.

Adding to 53426520 its reverse (2562435), we get a palindrome (55988955).

The spelling of 53426520 in words is "fifty-three million, four hundred twenty-six thousand, five hundred twenty".