51543712 has 48 divisors (see below), whose sum is σ = 111670272. Its totient is φ = 23224320.

The previous prime is 51543691. The next prime is 51543733. The reversal of 51543712 is 21734515.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51543691) and next prime (51543733).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44128 + ... + 45280.

It is an arithmetic number, because the mean of its divisors is an integer number (2326464).

Almost surely, 2^51543712 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 51543712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55835136).

51543712 is an abundant number, since it is smaller than the sum of its proper divisors (60126560).

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

51543712 is a wasteful number, since it uses less digits than its factorization.

51543712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1293 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 51543712 is about 7179.3949605799. The cubic root of 51543712 is about 372.1561759931.

The spelling of 51543712 in words is "fifty-one million, five hundred forty-three thousand, seven hundred twelve".