55793490 has 64 divisors (see below), whose sum is σ = 146396160. Its totient is φ = 13547520.

The previous prime is 55793483. The next prime is 55793501. The reversal of 55793490 is 9439755.

It is a super-2 number, since 2×55793490² = 6225827052760200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14046 + ... + 17574.

It is an arithmetic number, because the mean of its divisors is an integer number (2287440).

Almost surely, 2^55793490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55793490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73198080).

55793490 is an abundant number, since it is smaller than the sum of its proper divisors (90602670).

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

55793490 is a wasteful number, since it uses less digits than its factorization.

55793490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 55793490 is about 7469.5039995973. The cubic root of 55793490 is about 382.1153722585.

The spelling of 55793490 in words is "fifty-five million, seven hundred ninety-three thousand, four hundred ninety".