1553420360 has 64 divisors (see below), whose sum is σ = 3569184000. Its totient is φ = 608339200.

The previous prime is 1553420357. The next prime is 1553420387. The reversal of 1553420360 is 630243551.

It is a super-2 number, since 2×1553420360² = 4826229629725059200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421325 + ... + 424995.

It is an arithmetic number, because the mean of its divisors is an integer number (55768500).

Almost surely, 2^1553420360 is an apocalyptic number.

1553420360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1553420360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784592000).

1553420360 is an abundant number, since it is smaller than the sum of its proper divisors (2015763640).

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

1553420360 is a wasteful number, since it uses less digits than its factorization.

1553420360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902 (or 3898 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1553420360 is about 39413.4540480786. The cubic root of 1553420360 is about 1158.1451629305.

The spelling of 1553420360 in words is "one billion, five hundred fifty-three million, four hundred twenty thousand, three hundred sixty".