4545535551 has 4 divisors (see below), whose sum is σ = 6060714072. Its totient is φ = 3030357032.

The previous prime is 4545535543. The next prime is 4545535583. The reversal of 4545535551 is 1555355454.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4545535551 - 2³ = 4545535543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545535541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757589256 + ... + 757589261.

It is an arithmetic number, because the mean of its divisors is an integer number (1515178518).

Almost surely, 2^4545535551 is an apocalyptic number.

4545535551 is a deficient number, since it is larger than the sum of its proper divisors (1515178521).

4545535551 is a wasteful number, since it uses less digits than its factorization.

4545535551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515178520.

The product of its digits is 750000, while the sum is 42.

The square root of 4545535551 is about 67420.5869968513. The cubic root of 4545535551 is about 1656.5136526076.

The spelling of 4545535551 in words is "four billion, five hundred forty-five million, five hundred thirty-five thousand, five hundred fifty-one".