51773436 has 144 divisors (see below), whose sum is σ = 156854880. Its totient is φ = 14192640.

The previous prime is 51773431. The next prime is 51773443. The reversal of 51773436 is 63437715.

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

It is a self number, because there is not a number n which added to its sum of digits gives 51773436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51773431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 458116 + ... + 458228.

It is an arithmetic number, because the mean of its divisors is an integer number (1089270).

Almost surely, 2^51773436 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 51773436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78427440).

51773436 is an abundant number, since it is smaller than the sum of its proper divisors (105081444).

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

51773436 is a wasteful number, since it uses less digits than its factorization.

51773436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 231 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 51773436 is about 7195.3760151920. The cubic root of 51773436 is about 372.7082414453.

The spelling of 51773436 in words is "fifty-one million, seven hundred seventy-three thousand, four hundred thirty-six".