51946552 has 32 divisors (see below), whose sum is σ = 112312800. Its totient is φ = 22063104.

The previous prime is 51946523. The next prime is 51946553. The reversal of 51946552 is 25564915.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51946553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2224 + ... + 10432.

It is an arithmetic number, because the mean of its divisors is an integer number (3509775).

Almost surely, 2^51946552 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 51946552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56156400).

51946552 is an abundant number, since it is smaller than the sum of its proper divisors (60366248).

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

51946552 is a wasteful number, since it uses less digits than its factorization.

51946552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8335 (or 8331 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

The square root of 51946552 is about 7207.3956461402. The cubic root of 51946552 is about 373.1231902679.

The spelling of 51946552 in words is "fifty-one million, nine hundred forty-six thousand, five hundred fifty-two".