51436260 has 36 divisors (see below), whose sum is σ = 156023868. Its totient is φ = 13716288.

The previous prime is 51436241. The next prime is 51436261. The reversal of 51436260 is 6263415.

It can be written as a sum of positive squares in 2 ways, for example, as 14930496 + 36505764 = 3864^2 + 6042^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (51436261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142699 + ... + 143058.

Almost surely, 2^51436260 is an apocalyptic number.

It is an amenable number.

51436260 is an abundant number, since it is smaller than the sum of its proper divisors (104587608).

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

51436260 is a wasteful number, since it uses less digits than its factorization.

51436260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285772 (or 285767 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 51436260 is about 7171.9076960039. The cubic root of 51436260 is about 371.8973875842.

Adding to 51436260 its reverse (6263415), we get a palindrome (57699675).

The spelling of 51436260 in words is "fifty-one million, four hundred thirty-six thousand, two hundred sixty".