53525340 has 96 divisors (see below), whose sum is σ = 181681920. Its totient is φ = 12974400.

The previous prime is 53525323. The next prime is 53525341. The reversal of 53525340 is 4352535.

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 (53525341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1435 + ... + 10445.

It is an arithmetic number, because the mean of its divisors is an integer number (1892520).

Almost surely, 2^53525340 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 53525340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90840960).

53525340 is an abundant number, since it is smaller than the sum of its proper divisors (128156580).

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

53525340 is a wasteful number, since it uses less digits than its factorization.

53525340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9040 (or 9032 counting only the distinct ones).

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

The square root of 53525340 is about 7316.1014208388. The cubic root of 53525340 is about 376.8655835374.

Adding to 53525340 its reverse (4352535), we get a palindrome (57877875).

The spelling of 53525340 in words is "fifty-three million, five hundred twenty-five thousand, three hundred forty".