51365952 has 168 divisors, whose sum is σ = 164360352. Its totient is φ = 15333120.

The previous prime is 51365947. The next prime is 51365999. The reversal of 51365952 is 25956315.

It is a super-2 number, since 2×51365952² = 5276922049732608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 766623 + ... + 766689.

Almost surely, 2^51365952 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 51365952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82180176).

51365952 is an abundant number, since it is smaller than the sum of its proper divisors (112994400).

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

51365952 is a wasteful number, since it uses less digits than its factorization.

51365952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 83 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 51365952 is about 7167.0043951431. The cubic root of 51365952 is about 371.7278620125.

The spelling of 51365952 in words is "fifty-one million, three hundred sixty-five thousand, nine hundred fifty-two".