52552638 has 48 divisors (see below), whose sum is σ = 119822976. Its totient is φ = 17259480.

The previous prime is 52552637. The next prime is 52552639. The reversal of 52552638 is 83625525.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52552637) and next prime (52552639).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52552637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33745 + ... + 35267.

It is an arithmetic number, because the mean of its divisors is an integer number (2496312).

Almost surely, 2^52552638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52552638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59911488).

52552638 is an abundant number, since it is smaller than the sum of its proper divisors (67270338).

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

52552638 is a wasteful number, since it uses less digits than its factorization.

52552638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611 (or 1599 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 52552638 is about 7249.3198301634. The cubic root of 52552638 is about 374.5687201841.

The spelling of 52552638 in words is "fifty-two million, five hundred fifty-two thousand, six hundred thirty-eight".