55357652 has 54 divisors (see below), whose sum is σ = 116413038. Its totient is φ = 22958208.

The previous prime is 55357651. The next prime is 55357663. The reversal of 55357652 is 25675355.

It can be written as a sum of positive squares in 3 ways, for example, as 16370116 + 38987536 = 4046^2 + 6244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55357651) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 758288 + ... + 758360.

It is an arithmetic number, because the mean of its divisors is an integer number (2155797).

Almost surely, 2^55357652 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 55357652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58206519).

55357652 is an abundant number, since it is smaller than the sum of its proper divisors (61055386).

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

55357652 is a wasteful number, since it uses less digits than its factorization.

55357652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 135 counting only the distinct ones).

The product of its digits is 157500, while the sum is 38.

The square root of 55357652 is about 7440.2723068447. The cubic root of 55357652 is about 381.1177890758.

The spelling of 55357652 in words is "fifty-five million, three hundred fifty-seven thousand, six hundred fifty-two".