1553013340 has 36 divisors (see below), whose sum is σ = 3317690376. Its totient is φ = 610649056.

The previous prime is 1553013289. The next prime is 1553013349. The reversal of 1553013340 is 433103551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553013349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58467 + ... + 80773.

It is an arithmetic number, because the mean of its divisors is an integer number (92158066).

Almost surely, 2^1553013340 is an apocalyptic number.

1553013340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1553013340 is an abundant number, since it is smaller than the sum of its proper divisors (1764677036).

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

1553013340 is a wasteful number, since it uses less digits than its factorization.

1553013340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22434 (or 22373 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1553013340 is about 39408.2902445666. The cubic root of 1553013340 is about 1158.0440034863.

Adding to 1553013340 its reverse (433103551), we get a palindrome (1986116891).

The spelling of 1553013340 in words is "one billion, five hundred fifty-three million, thirteen thousand, three hundred forty".