5555551653 has 6 divisors (see below), whose sum is σ = 8024685734. Its totient is φ = 3703701096.

The previous prime is 5555551609. The next prime is 5555551693. The reversal of 5555551653 is 3561555555.

It can be written as a sum of positive squares in only one way, i.e., 3944091204 + 1611460449 = 62802^2 + 40143^2 .

It is not a de Polignac number, because 5555551653 - 2¹⁴ = 5555535269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5555551599 and 5555551608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555551693) 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, 308641750 + ... + 308641767.

Almost surely, 2^5555551653 is an apocalyptic number.

It is an amenable number.

5555551653 is a deficient number, since it is larger than the sum of its proper divisors (2469134081).

5555551653 is a wasteful number, since it uses less digits than its factorization.

5555551653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617283523 (or 617283520 counting only the distinct ones).

The product of its digits is 1406250, while the sum is 45.

The square root of 5555551653 is about 74535.5730708499. The cubic root of 5555551653 is about 1771.0972005958.

The spelling of 5555551653 in words is "five billion, five hundred fifty-five million, five hundred fifty-one thousand, six hundred fifty-three".