1550601564 has 12 divisors (see below), whose sum is σ = 3618070344. Its totient is φ = 516867184.

The previous prime is 1550601539. The next prime is 1550601593. The reversal of 1550601564 is 4651060551.

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, 64608387 + ... + 64608410.

It is an arithmetic number, because the mean of its divisors is an integer number (301505862).

Almost surely, 2^1550601564 is an apocalyptic number.

It is an amenable number.

1550601564 is an abundant number, since it is smaller than the sum of its proper divisors (2067468780).

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

1550601564 is a wasteful number, since it uses less digits than its factorization.

1550601564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129216804 (or 129216802 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 1550601564 is about 39377.6784993732. The cubic root of 1550601564 is about 1157.4442254736. Note that the first 3 decimals are identical.

The spelling of 1550601564 in words is "one billion, five hundred fifty million, six hundred one thousand, five hundred sixty-four".