55890552 has 96 divisors (see below), whose sum is σ = 155606400. Its totient is φ = 16651008.

The previous prime is 55890547. The next prime is 55890553. The reversal of 55890552 is 25509855.

55890552 = T₄₄₈ + T₄₄₉ + ... + T₇₅₁.

55890552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55890552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55890553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 765588 + ... + 765660.

It is an arithmetic number, because the mean of its divisors is an integer number (1620900).

Almost surely, 2^55890552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55890552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77803200).

55890552 is an abundant number, since it is smaller than the sum of its proper divisors (99715848).

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

55890552 is a wasteful number, since it uses less digits than its factorization.

55890552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 39.

The square root of 55890552 is about 7475.9983948634. The cubic root of 55890552 is about 382.3368281763.

The spelling of 55890552 in words is "fifty-five million, eight hundred ninety thousand, five hundred fifty-two".