52532240 has 40 divisors (see below), whose sum is σ = 124986048. Its totient is φ = 20522880.

The previous prime is 52532237. The next prime is 52532281. The reversal of 52532240 is 4223525.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4196 + ... + 11075.

Almost surely, 2^52532240 is an apocalyptic number.

It is an amenable number.

52532240 is an abundant number, since it is smaller than the sum of its proper divisors (72453808).

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

52532240 is a wasteful number, since it uses less digits than its factorization.

52532240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15327 (or 15321 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 52532240 is about 7247.9128030075. The cubic root of 52532240 is about 374.5202516911.

Adding to 52532240 its reverse (4223525), we get a palindrome (56755765).

The spelling of 52532240 in words is "fifty-two million, five hundred thirty-two thousand, two hundred forty".