5655001421 has 8 divisors (see below), whose sum is σ = 6104350080. Its totient is φ = 5222609392.

The previous prime is 5655001411. The next prime is 5655001433. The reversal of 5655001421 is 1241005565.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5655001421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5655001411) 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, 4238465 + ... + 4239798.

It is an arithmetic number, because the mean of its divisors is an integer number (763043760).

Almost surely, 2^5655001421 is an apocalyptic number.

It is an amenable number.

5655001421 is a deficient number, since it is larger than the sum of its proper divisors (449348659).

5655001421 is a wasteful number, since it uses less digits than its factorization.

5655001421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8478315.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 5655001421 is about 75199.7434902540. The cubic root of 5655001421 is about 1781.6028802361.

Adding to 5655001421 its reverse (1241005565), we get a palindrome (6896006986).

The spelling of 5655001421 in words is "five billion, six hundred fifty-five million, one thousand, four hundred twenty-one".