55253536 has 72 divisors (see below), whose sum is σ = 124928244. Its totient is φ = 23961600.

The previous prime is 55253531. The next prime is 55253537. The reversal of 55253536 is 63535255.

It can be written as a sum of positive squares in 6 ways, for example, as 24561936 + 30691600 = 4956^2 + 5540^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (55253531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91636 + ... + 92236.

Almost surely, 2^55253536 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 55253536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62464122).

55253536 is an abundant number, since it is smaller than the sum of its proper divisors (69674708).

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

55253536 is a wasteful number, since it uses less digits than its factorization.

55253536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 633 counting only the distinct ones).

The product of its digits is 67500, while the sum is 34.

The square root of 55253536 is about 7433.2722269536. The cubic root of 55253536 is about 380.8787052204.

It can be divided in two parts, 5525 and 3536, that multiplied together give a square (19536400 = 4420²).

The spelling of 55253536 in words is "fifty-five million, two hundred fifty-three thousand, five hundred thirty-six".