5401564321 has 12 divisors (see below), whose sum is σ = 5772078480. Its totient is φ = 5040814680.

The previous prime is 5401564319. The next prime is 5401564327. The reversal of 5401564321 is 1234651045.

It is a happy number.

It is not a de Polignac number, because 5401564321 - 2¹ = 5401564319 is a prime.

It is a super-2 number, since 2×5401564321² = 58353794227800382082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5401564327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53626 + ... + 116956.

It is an arithmetic number, because the mean of its divisors is an integer number (481006540).

Almost surely, 2^5401564321 is an apocalyptic number.

It is an amenable number.

5401564321 is a deficient number, since it is larger than the sum of its proper divisors (370514159).

5401564321 is an equidigital number, since it uses as much as digits as its factorization.

5401564321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63484 (or 63417 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 5401564321 is about 73495.3353689879. The cubic root of 5401564321 is about 1754.5800377697.

It can be divided in two parts, 54015 and 64321, that added together give a square (118336 = 344²).

The spelling of 5401564321 in words is "five billion, four hundred one million, five hundred sixty-four thousand, three hundred twenty-one".