5254767661 has 32 divisors (see below), whose sum is σ = 6519098880. Its totient is φ = 4164177600.

The previous prime is 5254767659. The next prime is 5254767667. The reversal of 5254767661 is 1667674525.

It is not a de Polignac number, because 5254767661 - 2¹ = 5254767659 is a prime.

It is a super-2 number, since 2×5254767661² = 55225166342182821842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5254767667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 896406 + ... + 902248.

It is an arithmetic number, because the mean of its divisors is an integer number (203721840).

Almost surely, 2^5254767661 is an apocalyptic number.

It is an amenable number.

5254767661 is a deficient number, since it is larger than the sum of its proper divisors (1264331219).

5254767661 is a wasteful number, since it uses less digits than its factorization.

5254767661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6217.

The product of its digits is 2116800, while the sum is 49.

The square root of 5254767661 is about 72489.7762515515. The cubic root of 5254767661 is about 1738.5392749053.

The spelling of 5254767661 in words is "five billion, two hundred fifty-four million, seven hundred sixty-seven thousand, six hundred sixty-one".