406006551 has 6 divisors (see below), whose sum is σ = 586453920. Its totient is φ = 270671028.

The previous prime is 406006541. The next prime is 406006571. The reversal of 406006551 is 155600604.

It is a happy number.

406006551 is a `hidden beast` number, since 4 + 0 + 6 + 0 + 0 + 655 + 1 = 666.

It is not a de Polignac number, because 406006551 - 2¹¹ = 406004503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406006541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22555911 + ... + 22555928.

It is an arithmetic number, because the mean of its divisors is an integer number (97742320).

Almost surely, 2^406006551 is an apocalyptic number.

406006551 is a deficient number, since it is larger than the sum of its proper divisors (180447369).

406006551 is a wasteful number, since it uses less digits than its factorization.

406006551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45111845 (or 45111842 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 406006551 is about 20149.6042392897. The cubic root of 406006551 is about 740.4760456519.

The spelling of 406006551 in words is "four hundred six million, six thousand, five hundred fifty-one".