554981520 has 80 divisors (see below), whose sum is σ = 1733103360. Its totient is φ = 146906112.

The previous prime is 554981503. The next prime is 554981527. The reversal of 554981520 is 25189455.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (554981527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24441 + ... + 41319.

It is an arithmetic number, because the mean of its divisors is an integer number (21663792).

Almost surely, 2^554981520 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 554981520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (866551680).

554981520 is an abundant number, since it is smaller than the sum of its proper divisors (1178121840).

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

554981520 is a wasteful number, since it uses less digits than its factorization.

554981520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17032 (or 17026 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 39.

The square root of 554981520 is about 23558.0457593579. The cubic root of 554981520 is about 821.7874551848.

The spelling of 554981520 in words is "five hundred fifty-four million, nine hundred eighty-one thousand, five hundred twenty".