1553224540 has 72 divisors (see below), whose sum is σ = 3994053840. Its totient is φ = 504499968.

The previous prime is 1553224489. The next prime is 1553224549. The reversal of 1553224540 is 454223551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553224549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23089 + ... + 60328.

It is an arithmetic number, because the mean of its divisors is an integer number (55472970).

Almost surely, 2^1553224540 is an apocalyptic number.

1553224540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1553224540 is an abundant number, since it is smaller than the sum of its proper divisors (2440829300).

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

1553224540 is a wasteful number, since it uses less digits than its factorization.

1553224540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83459 (or 83450 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1553224540 is about 39410.9697926859. The cubic root of 1553224540 is about 1158.0964966622.

The spelling of 1553224540 in words is "one billion, five hundred fifty-three million, two hundred twenty-four thousand, five hundred forty".