55321752 has 32 divisors (see below), whose sum is σ = 138516480. Its totient is φ = 18412320.

The previous prime is 55321691. The next prime is 55321753. The reversal of 55321752 is 25712355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55321753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19377 + ... + 22047.

It is an arithmetic number, because the mean of its divisors is an integer number (4328640).

Almost surely, 2^55321752 is an apocalyptic number.

It is an amenable number.

55321752 is an abundant number, since it is smaller than the sum of its proper divisors (83194728).

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

55321752 is a wasteful number, since it uses less digits than its factorization.

55321752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543 (or 3539 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 55321752 is about 7437.8593694691. The cubic root of 55321752 is about 381.0353850065.

The spelling of 55321752 in words is "fifty-five million, three hundred twenty-one thousand, seven hundred fifty-two".