51471156 has 48 divisors (see below), whose sum is σ = 131947200. Its totient is φ = 15486720.

The previous prime is 51471139. The next prime is 51471169. The reversal of 51471156 is 65117415.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 18360 + ... + 20976.

It is an arithmetic number, because the mean of its divisors is an integer number (2748900).

Almost surely, 2^51471156 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 51471156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65973600).

51471156 is an abundant number, since it is smaller than the sum of its proper divisors (80476044).

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

51471156 is a wasteful number, since it uses less digits than its factorization.

51471156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784 (or 2782 counting only the distinct ones).

The product of its digits is 4200, while the sum is 30.

The square root of 51471156 is about 7174.3401090274. The cubic root of 51471156 is about 371.9814709236.

The spelling of 51471156 in words is "fifty-one million, four hundred seventy-one thousand, one hundred fifty-six".