1550500404 has 12 divisors (see below), whose sum is σ = 3617834304. Its totient is φ = 516833464.

The previous prime is 1550500397. The next prime is 1550500423. The reversal of 1550500404 is 4040050551.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64604172 + ... + 64604195.

It is an arithmetic number, because the mean of its divisors is an integer number (301486192).

Almost surely, 2^1550500404 is an apocalyptic number.

It is an amenable number.

1550500404 is an abundant number, since it is smaller than the sum of its proper divisors (2067333900).

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

1550500404 is a wasteful number, since it uses less digits than its factorization.

1550500404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129208374 (or 129208372 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 1550500404 is about 39376.3939943718. The cubic root of 1550500404 is about 1157.4190546825.

Adding to 1550500404 its reverse (4040050551), we get a palindrome (5590550955).

The spelling of 1550500404 in words is "one billion, five hundred fifty million, five hundred thousand, four hundred four".