52632540 has 72 divisors (see below), whose sum is σ = 160392960. Its totient is φ = 13970304.

The previous prime is 52632539. The next prime is 52632557. The reversal of 52632540 is 4523625.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47877 + ... + 48963.

It is an arithmetic number, because the mean of its divisors is an integer number (2227680).

Almost surely, 2^52632540 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 52632540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80196480).

52632540 is an abundant number, since it is smaller than the sum of its proper divisors (107760420).

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

52632540 is a wasteful number, since it uses less digits than its factorization.

52632540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371 (or 1366 counting only the distinct ones).

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

The square root of 52632540 is about 7254.8287367794. The cubic root of 52632540 is about 374.7584577864.

The spelling of 52632540 in words is "fifty-two million, six hundred thirty-two thousand, five hundred forty".