2251513333040 has 40 divisors (see below), whose sum is σ = 5320584387888. Its totient is φ = 885841309440.

The previous prime is 2251513333037. The next prime is 2251513333049. The reversal of 2251513333040 is 403333151522.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2251513332988 and 2251513333006.

It is not an unprimeable number, because it can be changed into a prime (2251513333049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230682962 + ... + 230692721.

Almost surely, 2^{2251513333040} is an apocalyptic number.

2251513333040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2251513333040 is an abundant number, since it is smaller than the sum of its proper divisors (3069071054848).

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

2251513333040 is a wasteful number, since it uses less digits than its factorization.

2251513333040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461375757 (or 461375751 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 2251513333040 its reverse (403333151522), we get a palindrome (2654846484562).

The spelling of 2251513333040 in words is "two trillion, two hundred fifty-one billion, five hundred thirteen million, three hundred thirty-three thousand, forty".