55477332 has 24 divisors (see below), whose sum is σ = 143830400. Its totient is φ = 18492408.

The previous prime is 55477327. The next prime is 55477337. The reversal of 55477332 is 23377455.

55477332 is a `hidden beast` number, since 554 + 7 + 73 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (55477327) and next prime (55477337).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55477337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256732 + ... + 256947.

Almost surely, 2^55477332 is an apocalyptic number.

It is an amenable number.

55477332 is an abundant number, since it is smaller than the sum of its proper divisors (88353068).

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

55477332 is a wasteful number, since it uses less digits than its factorization.

55477332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513692 (or 513684 counting only the distinct ones).

The product of its digits is 88200, while the sum is 36.

The square root of 55477332 is about 7448.3106809531. The cubic root of 55477332 is about 381.3922428293.

The spelling of 55477332 in words is "fifty-five million, four hundred seventy-seven thousand, three hundred thirty-two".