29090906550 has 72 divisors (see below), whose sum is σ = 79099327944. Its totient is φ = 7664100480.

The previous prime is 29090906519. The next prime is 29090906627. The reversal of 29090906550 is 5560909092.

29090906550 is a `hidden beast` number, since 2 + 9 + 0 + 9 + 0 + 90 + 6 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 29090906496 and 29090906505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 352087 + ... + 426786.

It is an arithmetic number, because the mean of its divisors is an integer number (1098601777).

Almost surely, 2^29090906550 is an apocalyptic number.

29090906550 is an abundant number, since it is smaller than the sum of its proper divisors (50008421394).

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

29090906550 is a wasteful number, since it uses less digits than its factorization.

29090906550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778974 (or 778966 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The spelling of 29090906550 in words is "twenty-nine billion, ninety million, nine hundred six thousand, five hundred fifty".