55577150 has 12 divisors (see below), whose sum is σ = 103373592. Its totient is φ = 22230840.

The previous prime is 55577117. The next prime is 55577209. The reversal of 55577150 is 5177555.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55577150.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 555722 + ... + 555821.

It is an arithmetic number, because the mean of its divisors is an integer number (8614466).

Almost surely, 2^55577150 is an apocalyptic number.

55577150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55577150 is a deficient number, since it is larger than the sum of its proper divisors (47796442).

55577150 is a wasteful number, since it uses less digits than its factorization.

55577150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111555 (or 1111550 counting only the distinct ones).

The product of its (nonzero) digits is 30625, while the sum is 35.

The square root of 55577150 is about 7455.0083836304. The cubic root of 55577150 is about 381.6208467164.

The spelling of 55577150 in words is "fifty-five million, five hundred seventy-seven thousand, one hundred fifty".