55150700 has 72 divisors (see below), whose sum is σ = 131751984. Its totient is φ = 19872000.

The previous prime is 55150679. The next prime is 55150717. The reversal of 55150700 is 705155.

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 23 ways as a sum of consecutive naturals, for example, 198962 + ... + 199238.

Almost surely, 2^55150700 is an apocalyptic number.

55150700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55150700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65875992).

55150700 is an abundant number, since it is smaller than the sum of its proper divisors (76601284).

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

55150700 is a wasteful number, since it uses less digits than its factorization.

55150700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 875, while the sum is 23.

The square root of 55150700 is about 7426.3517288100. The cubic root of 55150700 is about 380.6422656491.

Adding to 55150700 its reverse (705155), we get a palindrome (55855855).

The spelling of 55150700 in words is "fifty-five million, one hundred fifty thousand, seven hundred".