5631775545 has 16 divisors (see below), whose sum is σ = 9830008512. Its totient is φ = 2730557760.

The previous prime is 5631775493. The next prime is 5631775609. The reversal of 5631775545 is 5455771365.

It is not a de Polignac number, because 5631775545 - 2⁶ = 5631775481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5631775494 and 5631775503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17065822 + ... + 17066151.

It is an arithmetic number, because the mean of its divisors is an integer number (614375532).

Almost surely, 2^5631775545 is an apocalyptic number.

5631775545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5631775545 is a deficient number, since it is larger than the sum of its proper divisors (4198232967).

5631775545 is a wasteful number, since it uses less digits than its factorization.

5631775545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34131992.

The product of its digits is 2205000, while the sum is 48.

The square root of 5631775545 is about 75045.1567058128. The cubic root of 5631775545 is about 1779.1604365614.

The spelling of 5631775545 in words is "five billion, six hundred thirty-one million, seven hundred seventy-five thousand, five hundred forty-five".