55421050 has 24 divisors (see below), whose sum is σ = 104039100. Its totient is φ = 21962880.

The previous prime is 55421039. The next prime is 55421057. The reversal of 55421050 is 5012455.

It can be written as a sum of positive squares in 6 ways, for example, as 39652209 + 15768841 = 6297^2 + 3971^2 .

It is not an unprimeable number, because it can be changed into a prime (55421057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366 + ... + 10534.

Almost surely, 2^55421050 is an apocalyptic number.

55421050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55421050 is a deficient number, since it is larger than the sum of its proper divisors (48618050).

55421050 is a wasteful number, since it uses less digits than its factorization.

55421050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290 (or 10285 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 55421050 is about 7444.5315500708. The cubic root of 55421050 is about 381.2632244808.

The spelling of 55421050 in words is "fifty-five million, four hundred twenty-one thousand, fifty".