5421505520 has 20 divisors (see below), whose sum is σ = 12605000520. Its totient is φ = 2168602176.

The previous prime is 5421505517. The next prime is 5421505541. The reversal of 5421505520 is 255051245.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33884330 + ... + 33884489.

It is an arithmetic number, because the mean of its divisors is an integer number (630250026).

Almost surely, 2^5421505520 is an apocalyptic number.

It is an amenable number.

5421505520 is an abundant number, since it is smaller than the sum of its proper divisors (7183495000).

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

5421505520 is a wasteful number, since it uses less digits than its factorization.

5421505520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67768832 (or 67768826 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 5421505520 is about 73630.8734159795. The cubic root of 5421505520 is about 1756.7365403176.

Adding to 5421505520 its reverse (255051245), we get a palindrome (5676556765).

The spelling of 5421505520 in words is "five billion, four hundred twenty-one million, five hundred five thousand, five hundred twenty".