1550006406 has 24 divisors (see below), whose sum is σ = 3616682160. Its totient is φ = 476924976.

The previous prime is 1550006383. The next prime is 1550006461. The reversal of 1550006406 is 6046000551.

It is a happy number.

1550006406 is a `hidden beast` number, since 15 + 5 + 0 + 0 + 0 + 640 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1550006406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3311746 + ... + 3312213.

It is an arithmetic number, because the mean of its divisors is an integer number (150695090).

Almost surely, 2^1550006406 is an apocalyptic number.

1550006406 is an abundant number, since it is smaller than the sum of its proper divisors (2066675754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1550006406 is a wasteful number, since it uses less digits than its factorization.

1550006406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6623980 (or 6623977 counting only the distinct ones).

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

The square root of 1550006406 is about 39370.1207262564. The cubic root of 1550006406 is about 1157.2961215895.

Adding to 1550006406 its reverse (6046000551), we get a palindrome (7596006957).

The spelling of 1550006406 in words is "one billion, five hundred fifty million, six thousand, four hundred six".