1553650064 has 80 divisors (see below), whose sum is σ = 3351452160. Its totient is φ = 694656000.

The previous prime is 1553650057. The next prime is 1553650073. The reversal of 1553650064 is 4600563551.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384374 + ... + 388394.

It is an arithmetic number, because the mean of its divisors is an integer number (41893152).

Almost surely, 2^1553650064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1553650064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675726080).

1553650064 is an abundant number, since it is smaller than the sum of its proper divisors (1797802096).

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

1553650064 is a wasteful number, since it uses less digits than its factorization.

1553650064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4120 (or 4114 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 1553650064 is about 39416.3679706794. The cubic root of 1553650064 is about 1158.2022450254.

The spelling of 1553650064 in words is "one billion, five hundred fifty-three million, six hundred fifty thousand, sixty-four".