201504553240 has 64 divisors (see below), whose sum is σ = 466098831360. Its totient is φ = 78364348800.

The previous prime is 201504553231. The next prime is 201504553247. The reversal of 201504553240 is 42355405102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201504553247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71032 + ... + 638791.

It is an arithmetic number, because the mean of its divisors is an integer number (7282794240).

Almost surely, 2^201504553240 is an apocalyptic number.

201504553240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201504553240 is an abundant number, since it is smaller than the sum of its proper divisors (264594278120).

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

201504553240 is a wasteful number, since it uses less digits than its factorization.

201504553240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710032 (or 710028 counting only the distinct ones).

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

Adding to 201504553240 its reverse (42355405102), we get a palindrome (243859958342).

The spelling of 201504553240 in words is "two hundred one billion, five hundred four million, five hundred fifty-three thousand, two hundred forty".