55773536 has 96 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 21735936.

The previous prime is 55773527. The next prime is 55773539. The reversal of 55773536 is 63537755.

It is a super-3 number, since 3×55773536³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 55773493 and 55773502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55773539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311495 + ... + 311673.

It is an arithmetic number, because the mean of its divisors is an integer number (1428840).

Almost surely, 2^55773536 is an apocalyptic number.

55773536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55773536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68584320).

55773536 is an abundant number, since it is smaller than the sum of its proper divisors (81395104).

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

55773536 is a wasteful number, since it uses less digits than its factorization.

55773536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 308 counting only the distinct ones).

The product of its digits is 330750, while the sum is 41.

The square root of 55773536 is about 7468.1681823590. The cubic root of 55773536 is about 382.0698135425.

The spelling of 55773536 in words is "fifty-five million, seven hundred seventy-three thousand, five hundred thirty-six".