55773936 has 60 divisors (see below), whose sum is σ = 157147432. Its totient is φ = 18465408.

The previous prime is 55773901. The next prime is 55773959. The reversal of 55773936 is 63937755.

55773936 is a `hidden beast` number, since 557 + 7 + 3 + 93 + 6 = 666.

It is a super-2 number, since 2×55773936² = 6221463873864192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55773891 and 55773900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21375 + ... + 23841.

Almost surely, 2^55773936 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 55773936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78573716).

55773936 is an abundant number, since it is smaller than the sum of its proper divisors (101373496).

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

55773936 is a wasteful number, since it uses less digits than its factorization.

55773936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638 (or 2629 counting only the distinct ones).

The product of its digits is 595350, while the sum is 45.

The square root of 55773936 is about 7468.1949626399. The cubic root of 55773936 is about 382.0707269241.

The spelling of 55773936 in words is "fifty-five million, seven hundred seventy-three thousand, nine hundred thirty-six".