52513758 has 144 divisors (see below), whose sum is σ = 139426560. Its totient is φ = 14754960.

The previous prime is 52513691. The next prime is 52513759. The reversal of 52513758 is 85731525.

Its product of digits (42000) is a multiple of the sum of its prime factors (105).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52513759) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1117291 + ... + 1117337.

It is an arithmetic number, because the mean of its divisors is an integer number (968240).

Almost surely, 2^52513758 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52513758, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69713280).

52513758 is an abundant number, since it is smaller than the sum of its proper divisors (86912802).

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

52513758 is a wasteful number, since it uses less digits than its factorization.

52513758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 82 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 52513758 is about 7246.6377031007. The cubic root of 52513758 is about 374.4763250459.

It can be divided in two parts, 5251 and 3758, that added together give a palindrome (9009).

The spelling of 52513758 in words is "fifty-two million, five hundred thirteen thousand, seven hundred fifty-eight".