55490526 has 96 divisors (see below), whose sum is σ = 155850240. Its totient is φ = 13856832.

The previous prime is 55490509. The next prime is 55490531. The reversal of 55490526 is 62509455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30231 + ... + 32013.

It is an arithmetic number, because the mean of its divisors is an integer number (1623440).

Almost surely, 2^55490526 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55490526, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77925120).

55490526 is an abundant number, since it is smaller than the sum of its proper divisors (100359714).

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

55490526 is a wasteful number, since it uses less digits than its factorization.

55490526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830 (or 1827 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 55490526 is about 7449.1963324912. The cubic root of 55490526 is about 381.4224755400.

It can be divided in two parts, 554905 and 26, that added together give a triangular number (554931 = T₁₀₅₃).

The spelling of 55490526 in words is "fifty-five million, four hundred ninety thousand, five hundred twenty-six".