51152442 has 16 divisors (see below), whose sum is σ = 111605472. Its totient is φ = 15500720.

The previous prime is 51152401. The next prime is 51152443. The reversal of 51152442 is 24425115.

It is not an unprimeable number, because it can be changed into a prime (51152443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 387453 + ... + 387584.

It is an arithmetic number, because the mean of its divisors is an integer number (6975342).

Almost surely, 2^51152442 is an apocalyptic number.

51152442 is an abundant number, since it is smaller than the sum of its proper divisors (60453030).

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

51152442 is a wasteful number, since it uses less digits than its factorization.

51152442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775053.

The product of its digits is 1600, while the sum is 24.

The square root of 51152442 is about 7152.0935396568. The cubic root of 51152442 is about 371.2120998846.

Adding to 51152442 its reverse (24425115), we get a palindrome (75577557).

It can be divided in two parts, 511524 and 42, that added together give a triangular number (511566 = T₁₀₁₁).

The spelling of 51152442 in words is "fifty-one million, one hundred fifty-two thousand, four hundred forty-two".