551206501401 has 8 divisors (see below), whose sum is σ = 735564311424. Its totient is φ = 367159846160.

The previous prime is 551206501381. The next prime is 551206501463. The reversal of 551206501401 is 104105602155.

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 551206501401 - 2⁶ = 551206501337 is a prime.

It is a super-2 number, since 2×551206501401² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551206501201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77784561 + ... + 77791646.

It is an arithmetic number, because the mean of its divisors is an integer number (91945538928).

Almost surely, 2^551206501401 is an apocalyptic number.

It is an amenable number.

551206501401 is a deficient number, since it is larger than the sum of its proper divisors (184357810023).

551206501401 is a wasteful number, since it uses less digits than its factorization.

551206501401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155577391.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 551206501401 in words is "five hundred fifty-one billion, two hundred six million, five hundred one thousand, four hundred one".