55511552 has 20 divisors (see below), whose sum is σ = 110915706. Its totient is φ = 27755520.

The previous prime is 55511543. The next prime is 55511557. The reversal of 55511552 is 25511555.

It can be written as a sum of positive squares in only one way, i.e., 45373696 + 10137856 = 6736^2 + 3184^2 .

It is not an unprimeable number, because it can be changed into a prime (55511557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53699 + ... + 54722.

Almost surely, 2^55511552 is an apocalyptic number.

It is an amenable number.

55511552 is a deficient number, since it is larger than the sum of its proper divisors (55404154).

55511552 is an equidigital number, since it uses as much as digits as its factorization.

55511552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108439 (or 108423 counting only the distinct ones).

The product of its digits is 6250, while the sum is 29.

The square root of 55511552 is about 7450.6074920103. The cubic root of 55511552 is about 381.4706445809.

The spelling of 55511552 in words is "fifty-five million, five hundred eleven thousand, five hundred fifty-two".