52011040 has 72 divisors (see below), whose sum is σ = 126624708. Its totient is φ = 20183040.

The previous prime is 52011031. The next prime is 52011059. The reversal of 52011040 is 4011025.

It can be written as a sum of positive squares in 6 ways, for example, as 11102224 + 40908816 = 3332^2 + 6396^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52011040.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 712444 + ... + 712516.

Almost surely, 2^52011040 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 52011040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63312354).

52011040 is an abundant number, since it is smaller than the sum of its proper divisors (74613668).

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

52011040 is an equidigital number, since it uses as much as digits as its factorization.

52011040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 52011040 is about 7211.8679965734. The cubic root of 52011040 is about 373.2775285069.

Adding to 52011040 its reverse (4011025), we get a palindrome (56022065).

It can be divided in two parts, 5201 and 1040, that added together give a square (6241 = 79²).

The spelling of 52011040 in words is "fifty-two million, eleven thousand, forty".