5405521398 has 32 divisors (see below), whose sum is σ = 11164019712. Its totient is φ = 1743055200.

The previous prime is 5405521397. The next prime is 5405521409. The reversal of 5405521398 is 8931255045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5405521393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 808188 + ... + 814848.

It is an arithmetic number, because the mean of its divisors is an integer number (348875616).

Almost surely, 2^5405521398 is an apocalyptic number.

5405521398 is an abundant number, since it is smaller than the sum of its proper divisors (5758498314).

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

5405521398 is a wasteful number, since it uses less digits than its factorization.

5405521398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060.

The product of its (nonzero) digits is 216000, while the sum is 42.

The square root of 5405521398 is about 73522.2510400763. The cubic root of 5405521398 is about 1755.0083898269.

The spelling of 5405521398 in words is "five billion, four hundred five million, five hundred twenty-one thousand, three hundred ninety-eight".