52391112 has 64 divisors (see below), whose sum is σ = 137894400. Its totient is φ = 16565760.

The previous prime is 52391107. The next prime is 52391117. The reversal of 52391112 is 21119325.

It is an interprime number because it is at equal distance from previous prime (52391107) and next prime (52391117).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (52391117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35689 + ... + 37127.

It is an arithmetic number, because the mean of its divisors is an integer number (2154600).

Almost surely, 2^52391112 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 52391112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68947200).

52391112 is an abundant number, since it is smaller than the sum of its proper divisors (85503288).

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

52391112 is a wasteful number, since it uses less digits than its factorization.

52391112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1522 counting only the distinct ones).

The product of its digits is 540, while the sum is 24.

The square root of 52391112 is about 7238.1704870775. The cubic root of 52391112 is about 374.1845676945.

The spelling of 52391112 in words is "fifty-two million, three hundred ninety-one thousand, one hundred twelve".