5621667457 has 8 divisors (see below), whose sum is σ = 6802690176. Its totient is φ = 4535126592.

The previous prime is 5621667449. The next prime is 5621667473. The reversal of 5621667457 is 7547661265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5621667457 - 2³ = 5621667449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5621667457.

It is not an unprimeable number, because it can be changed into a prime (5621662457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23620333 + ... + 23620570.

It is an arithmetic number, because the mean of its divisors is an integer number (850336272).

Almost surely, 2^5621667457 is an apocalyptic number.

It is an amenable number.

5621667457 is a deficient number, since it is larger than the sum of its proper divisors (1181022719).

5621667457 is a wasteful number, since it uses less digits than its factorization.

5621667457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47240927.

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

The square root of 5621667457 is about 74977.7797550714. The cubic root of 5621667457 is about 1778.0953680515.

The spelling of 5621667457 in words is "five billion, six hundred twenty-one million, six hundred sixty-seven thousand, four hundred fifty-seven".