55423536 has 160 divisors (see below), whose sum is σ = 179417088. Its totient is φ = 14376960.

The previous prime is 55423507. The next prime is 55423541. The reversal of 55423536 is 63532455.

It is a junction number, because it is equal to n+sod(n) for n = 55423497 and 55423506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176916 + ... + 177228.

Almost surely, 2^55423536 is an apocalyptic number.

55423536 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 55423536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89708544).

55423536 is an abundant number, since it is smaller than the sum of its proper divisors (123993552).

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

55423536 is a wasteful number, since it uses less digits than its factorization.

55423536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 373 counting only the distinct ones).

The product of its digits is 54000, while the sum is 33.

The square root of 55423536 is about 7444.6985163941. The cubic root of 55423536 is about 381.2689251199.

It can be divided in two parts, 554 and 23536, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 55423536 in words is "fifty-five million, four hundred twenty-three thousand, five hundred thirty-six".