55983590 has 64 divisors (see below), whose sum is σ = 113533056. Its totient is φ = 19740672.

The previous prime is 55983569. The next prime is 55983611. The reversal of 55983590 is 9538955.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55983569) and next prime (55983611).

It is a congruent number.

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, 495374 + ... + 495486.

It is an arithmetic number, because the mean of its divisors is an integer number (1773954).

Almost surely, 2^55983590 is an apocalyptic number.

55983590 is an abundant number, since it is smaller than the sum of its proper divisors (57549466).

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

55983590 is a wasteful number, since it uses less digits than its factorization.

55983590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its (nonzero) digits is 243000, while the sum is 44.

The square root of 55983590 is about 7482.2182539672. The cubic root of 55983590 is about 382.5488624266.

The spelling of 55983590 in words is "fifty-five million, nine hundred eighty-three thousand, five hundred ninety".