2251513333042 has 8 divisors (see below), whose sum is σ = 3387291573276. Its totient is φ = 1122416141952.

The previous prime is 2251513333037. The next prime is 2251513333049. The reversal of 2251513333042 is 2403333151522.

It can be written as a sum of positive squares in 2 ways, for example, as 1859074983441 + 392438349601 = 1363479^2 + 626449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2251513332989 and 2251513333007.

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 3 ways as a sum of consecutive naturals, for example, 1670261443 + ... + 1670262790.

Almost surely, 2^{2251513333042} is an apocalyptic number.

2251513333042 is a deficient number, since it is larger than the sum of its proper divisors (1135778240234).

2251513333042 is a wasteful number, since it uses less digits than its factorization.

2251513333042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340524572.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 2251513333042 its reverse (2403333151522), we get a palindrome (4654846484564).

The spelling of 2251513333042 in words is "two trillion, two hundred fifty-one billion, five hundred thirteen million, three hundred thirty-three thousand, forty-two".