5409521551 has 6 divisors (see below), whose sum is σ = 6292708800. Its totient is φ = 4636732716.

The previous prime is 5409521527. The next prime is 5409521563. The reversal of 5409521551 is 1551259045.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-5409521551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5409521551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5409521951) 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, 55199151 + ... + 55199248.

It is an arithmetic number, because the mean of its divisors is an integer number (1048784800).

Almost surely, 2^5409521551 is an apocalyptic number.

5409521551 is a deficient number, since it is larger than the sum of its proper divisors (883187249).

5409521551 is a wasteful number, since it uses less digits than its factorization.

5409521551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110398413 (or 110398406 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 37.

The square root of 5409521551 is about 73549.4496988251. The cubic root of 5409521551 is about 1755.4411924230.

The spelling of 5409521551 in words is "five billion, four hundred nine million, five hundred twenty-one thousand, five hundred fifty-one".