5401521553 has 8 divisors (see below), whose sum is σ = 5652180648. Its totient is φ = 5156371584.

The previous prime is 5401521509. The next prime is 5401521563. The reversal of 5401521553 is 3551251045.

It can be written as a sum of positive squares in 4 ways, for example, as 918817344 + 4482704209 = 30312^2 + 66953^2 .

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 5401521553 - 2¹⁷ = 5401390481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5401521563) 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, 1375276 + ... + 1379197.

It is an arithmetic number, because the mean of its divisors is an integer number (706522581).

Almost surely, 2^5401521553 is an apocalyptic number.

5401521553 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

5401521553 is a deficient number, since it is larger than the sum of its proper divisors (250659095).

5401521553 is a wasteful number, since it uses less digits than its factorization.

5401521553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754563.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 5401521553 is about 73495.0444111710. The cubic root of 5401521553 is about 1754.5754070077.

Adding to 5401521553 its reverse (3551251045), we get a palindrome (8952772598).

The spelling of 5401521553 in words is "five billion, four hundred one million, five hundred twenty-one thousand, five hundred fifty-three".