5654640461 has 4 divisors (see below), whose sum is σ = 5657616924. Its totient is φ = 5651664000.

The previous prime is 5654640457. The next prime is 5654640491. The reversal of 5654640461 is 1640464565.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3195075625 + 2459564836 = 56525^2 + 49594^2 .

It is a cyclic number.

It is not a de Polignac number, because 5654640461 - 2² = 5654640457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5654640401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1485380 + ... + 1489181.

It is an arithmetic number, because the mean of its divisors is an integer number (1414404231).

Almost surely, 2^5654640461 is an apocalyptic number.

It is an amenable number.

5654640461 is a deficient number, since it is larger than the sum of its proper divisors (2976463).

5654640461 is a wasteful number, since it uses less digits than its factorization.

5654640461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976462.

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 5654640461 is about 75197.3434437680. The cubic root of 5654640461 is about 1781.5649727267.

The spelling of 5654640461 in words is "five billion, six hundred fifty-four million, six hundred forty thousand, four hundred sixty-one".