245402251452511 has 4 divisors (see below), whose sum is σ = 249064971623512. Its totient is φ = 241739531281512.

The previous prime is 245402251452509. The next prime is 245402251452551. The reversal of 245402251452511 is 115254152204542.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245402251452511 - 2¹ = 245402251452509 is a prime.

It is a super-2 number, since 2×245402251452511² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245402251452551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831360085400 + ... + 1831360085533.

It is an arithmetic number, because the mean of its divisors is an integer number (62266242905878).

Almost surely, 2^{245402251452511} is an apocalyptic number.

245402251452511 is a deficient number, since it is larger than the sum of its proper divisors (3662720171001).

245402251452511 is an equidigital number, since it uses as much as digits as its factorization.

245402251452511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662720171000.

The product of its (nonzero) digits is 640000, while the sum is 43.

The spelling of 245402251452511 in words is "two hundred forty-five trillion, four hundred two billion, two hundred fifty-one million, four hundred fifty-two thousand, five hundred eleven".