52553740 has 48 divisors (see below), whose sum is σ = 115159968. Its totient is φ = 20127744.

The previous prime is 52553729. The next prime is 52553747. The reversal of 52553740 is 4735525.

It is not an unprimeable number, because it can be changed into a prime (52553747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45004 + ... + 46156.

It is an arithmetic number, because the mean of its divisors is an integer number (2399166).

Almost surely, 2^52553740 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 52553740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57579984).

52553740 is an abundant number, since it is smaller than the sum of its proper divisors (62606228).

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

52553740 is a wasteful number, since it uses less digits than its factorization.

52553740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 52553740 is about 7249.3958368957. The cubic root of 52553740 is about 374.5713383327.

The spelling of 52553740 in words is "fifty-two million, five hundred fifty-three thousand, seven hundred forty".