51000352 has 24 divisors (see below), whose sum is σ = 108131436. Its totient is φ = 23538432.

The previous prime is 51000349. The next prime is 51000353. The reversal of 51000352 is 25300015.

It can be written as a sum of positive squares in 2 ways, for example, as 36529936 + 14470416 = 6044^2 + 3804^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (51000353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60883 + ... + 61714.

Almost surely, 2^51000352 is an apocalyptic number.

51000352 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51000352 is an abundant number, since it is smaller than the sum of its proper divisors (57131084).

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

51000352 is a wasteful number, since it uses less digits than its factorization.

51000352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122620 (or 122612 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 51000352 is about 7141.4530734298. The cubic root of 51000352 is about 370.8438301059.

Adding to 51000352 its reverse (25300015), we get a palindrome (76300367).

The spelling of 51000352 in words is "fifty-one million, three hundred fifty-two", and thus it is an aban number.