55077552 has 120 divisors (see below), whose sum is σ = 165391200. Its totient is φ = 17049600.

The previous prime is 55077527. The next prime is 55077559. The reversal of 55077552 is 25577055.

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

It is not an unprimeable number, because it can be changed into a prime (55077559) 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 23 ways as a sum of consecutive naturals, for example, 364677 + ... + 364827.

It is an arithmetic number, because the mean of its divisors is an integer number (1378260).

Almost surely, 2^55077552 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 55077552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82695600).

55077552 is an abundant number, since it is smaller than the sum of its proper divisors (110313648).

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

55077552 is a wasteful number, since it uses less digits than its factorization.

55077552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 61250, while the sum is 36.

The square root of 55077552 is about 7421.4252000542. The cubic root of 55077552 is about 380.4739055056.

The spelling of 55077552 in words is "fifty-five million, seventy-seven thousand, five hundred fifty-two".