5402305521 has 6 divisors (see below), whose sum is σ = 7803330210. Its totient is φ = 3601537008.

The previous prime is 5402305507. The next prime is 5402305541. The reversal of 5402305521 is 1255032045.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3382701921 + 2019603600 = 58161^2 + 44940^2 .

It is not a de Polignac number, because 5402305521 - 2⁶ = 5402305457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5402305541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 300128076 + ... + 300128093.

It is an arithmetic number, because the mean of its divisors is an integer number (1300555035).

Almost surely, 2^5402305521 is an apocalyptic number.

It is an amenable number.

5402305521 is a deficient number, since it is larger than the sum of its proper divisors (2401024689).

5402305521 is a wasteful number, since it uses less digits than its factorization.

5402305521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600256175 (or 600256172 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 5402305521 is about 73500.3776929071. The cubic root of 5402305521 is about 1754.6602883025.

Adding to 5402305521 its reverse (1255032045), we get a palindrome (6657337566).

The spelling of 5402305521 in words is "five billion, four hundred two million, three hundred five thousand, five hundred twenty-one".