551140405 has 8 divisors (see below), whose sum is σ = 662546592. Its totient is φ = 440126928.

The previous prime is 551140367. The next prime is 551140427. The reversal of 551140405 is 504041155.

It is a happy number.

551140405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 551140405 - 2²⁷ = 416922677 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 551140405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95079 + ... + 100708.

It is an arithmetic number, because the mean of its divisors is an integer number (82818324).

Almost surely, 2^551140405 is an apocalyptic number.

It is an amenable number.

551140405 is a deficient number, since it is larger than the sum of its proper divisors (111406187).

551140405 is a wasteful number, since it uses less digits than its factorization.

551140405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196355.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 551140405 is about 23476.3797251621. The cubic root of 551140405 is about 819.8871572859.

The spelling of 551140405 in words is "five hundred fifty-one million, one hundred forty thousand, four hundred five".