5421505421 has 8 divisors (see below), whose sum is σ = 5658349824. Its totient is φ = 5184754960.

The previous prime is 5421505417. The next prime is 5421505487. The reversal of 5421505421 is 1245051245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5421505421 - 2² = 5421505417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421502421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110876 + ... + 152106.

It is an arithmetic number, because the mean of its divisors is an integer number (707293728).

Almost surely, 2^5421505421 is an apocalyptic number.

It is an amenable number.

5421505421 is a deficient number, since it is larger than the sum of its proper divisors (236844403).

5421505421 is a wasteful number, since it uses less digits than its factorization.

5421505421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46971.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 5421505421 is about 73630.8727437072. The cubic root of 5421505421 is about 1756.7365296246.

Adding to 5421505421 its reverse (1245051245), we get a palindrome (6666556666).

The spelling of 5421505421 in words is "five billion, four hundred twenty-one million, five hundred five thousand, four hundred twenty-one".