1553086380 has 24 divisors (see below), whose sum is σ = 4348642032. Its totient is φ = 414156352.

The previous prime is 1553086373. The next prime is 1553086421. The reversal of 1553086380 is 836803551.

1553086380 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12942327 + ... + 12942446.

It is an arithmetic number, because the mean of its divisors is an integer number (181193418).

Almost surely, 2^1553086380 is an apocalyptic number.

1553086380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1553086380 is an abundant number, since it is smaller than the sum of its proper divisors (2795555652).

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

1553086380 is a wasteful number, since it uses less digits than its factorization.

1553086380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25884785 (or 25884783 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1553086380 is about 39409.2169422332. The cubic root of 1553086380 is about 1158.0621579147.

The spelling of 1553086380 in words is "one billion, five hundred fifty-three million, eighty-six thousand, three hundred eighty".