52150440 has 128 divisors (see below), whose sum is σ = 167184000. Its totient is φ = 12976128.

The previous prime is 52150411. The next prime is 52150471. The reversal of 52150440 is 4405125.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202792 + ... + 203048.

It is an arithmetic number, because the mean of its divisors is an integer number (1306125).

Almost surely, 2^52150440 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 52150440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83592000).

52150440 is an abundant number, since it is smaller than the sum of its proper divisors (115033560).

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

52150440 is a wasteful number, since it uses less digits than its factorization.

52150440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 52150440 is about 7221.5261544912. The cubic root of 52150440 is about 373.6107171825.

Adding to 52150440 its reverse (4405125), we get a palindrome (56555565).

The spelling of 52150440 in words is "fifty-two million, one hundred fifty thousand, four hundred forty".