51156360 has 192 divisors, whose sum is σ = 182145600. Its totient is φ = 12877056.

The previous prime is 51156353. The next prime is 51156361. The reversal of 51156360 is 6365115.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51156361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184542 + ... + 184818.

It is an arithmetic number, because the mean of its divisors is an integer number (948675).

Almost surely, 2^51156360 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 51156360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91072800).

51156360 is an abundant number, since it is smaller than the sum of its proper divisors (130989240).

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

51156360 is a wasteful number, since it uses less digits than its factorization.

51156360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 51156360 is about 7152.3674402256. The cubic root of 51156360 is about 371.2215772547.

The spelling of 51156360 in words is "fifty-one million, one hundred fifty-six thousand, three hundred sixty".