55910790 has 128 divisors (see below), whose sum is σ = 170190720. Its totient is φ = 12939264.

The previous prime is 55910759. The next prime is 55910791. The reversal of 55910790 is 9701955.

It is a happy number.

55910790 is a `hidden beast` number, since 559 + 10 + 7 + 90 = 666.

It is a super-3 number, since 3×55910790³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55910791) 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 63 ways as a sum of consecutive naturals, for example, 59202 + ... + 60138.

It is an arithmetic number, because the mean of its divisors is an integer number (1329615).

Almost surely, 2^55910790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55910790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85095360).

55910790 is an abundant number, since it is smaller than the sum of its proper divisors (114279930).

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

55910790 is a wasteful number, since it uses less digits than its factorization.

55910790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 977 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 36.

The square root of 55910790 is about 7477.3518039477. The cubic root of 55910790 is about 382.3829707335.

The spelling of 55910790 in words is "fifty-five million, nine hundred ten thousand, seven hundred ninety".