55851936 has 96 divisors (see below), whose sum is σ = 177448320. Its totient is φ = 15015936.

The previous prime is 55851931. The next prime is 55851949. The reversal of 55851936 is 63915855.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (55851931) 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, 8980 + ... + 13868.

It is an arithmetic number, because the mean of its divisors is an integer number (1848420).

Almost surely, 2^55851936 is an apocalyptic number.

55851936 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 55851936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88724160).

55851936 is an abundant number, since it is smaller than the sum of its proper divisors (121596384).

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

55851936 is a wasteful number, since it uses less digits than its factorization.

55851936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926 (or 4918 counting only the distinct ones).

The product of its digits is 162000, while the sum is 42.

The square root of 55851936 is about 7473.4152835233. The cubic root of 55851936 is about 382.2487529408.

The spelling of 55851936 in words is "fifty-five million, eight hundred fifty-one thousand, nine hundred thirty-six".