55377488 has 20 divisors (see below), whose sum is σ = 107844660. Its totient is φ = 27546624.

The previous prime is 55377481. The next prime is 55377503. The reversal of 55377488 is 88477355.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27583504 + 27793984 = 5252^2 + 5272^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55377481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5633 + ... + 11936.

It is an arithmetic number, because the mean of its divisors is an integer number (5392233).

Almost surely, 2^55377488 is an apocalyptic number.

It is an amenable number.

55377488 is a deficient number, since it is larger than the sum of its proper divisors (52467172).

55377488 is a wasteful number, since it uses less digits than its factorization.

55377488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17774 (or 17768 counting only the distinct ones).

The product of its digits is 940800, while the sum is 47.

The square root of 55377488 is about 7441.6052031803. The cubic root of 55377488 is about 381.1633049133.

The spelling of 55377488 in words is "fifty-five million, three hundred seventy-seven thousand, four hundred eighty-eight".