55520464 has 10 divisors (see below), whose sum is σ = 107570930. Its totient is φ = 27760224.

The previous prime is 55520441. The next prime is 55520467. The reversal of 55520464 is 46402555.

55520464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 51552400 + 3968064 = 7180^2 + 1992^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55520467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1734999 + ... + 1735030.

It is an arithmetic number, because the mean of its divisors is an integer number (10757093).

Almost surely, 2^55520464 is an apocalyptic number.

It is an amenable number.

55520464 is a deficient number, since it is larger than the sum of its proper divisors (52050466).

55520464 is a wasteful number, since it uses less digits than its factorization.

55520464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3470037 (or 3470031 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 55520464 is about 7451.2055400452. The cubic root of 55520464 is about 381.4910576562.

The spelling of 55520464 in words is "fifty-five million, five hundred twenty thousand, four hundred sixty-four".