55234872 has 256 divisors, whose sum is σ = 198374400. Its totient is φ = 13996800.

The previous prime is 55234871. The next prime is 55234873. The reversal of 55234872 is 27843255.

55234872 is a `hidden beast` number, since 552 + 34 + 8 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (55234871) and next prime (55234873).

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

Its product of digits (67200) is a multiple of the sum of its prime divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55234871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1347172 + ... + 1347212.

It is an arithmetic number, because the mean of its divisors is an integer number (774900).

Almost surely, 2^55234872 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 55234872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99187200).

55234872 is an abundant number, since it is smaller than the sum of its proper divisors (143139528).

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

55234872 is a wasteful number, since it uses less digits than its factorization.

55234872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 64 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 55234872 is about 7432.0166845884. The cubic root of 55234872 is about 380.8358149293.

The spelling of 55234872 in words is "fifty-five million, two hundred thirty-four thousand, eight hundred seventy-two".