742025505520247 has 8 divisors (see below), whose sum is σ = 799981563339840. Its totient is φ = 684194758097760.

The previous prime is 742025505520241. The next prime is 742025505520261.

742025505520247 is nontrivially palindromic in base 10.

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

It is a de Polignac number, because none of the positive numbers 2^k-742025505520247 is a prime.

It is a super-2 number, since 2×742025505520247² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 742025505520195 and 742025505520204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742025505520241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31327586972 + ... + 31327610657.

It is an arithmetic number, because the mean of its divisors is an integer number (99997695417480).

Almost surely, 2^{742025505520247} is an apocalyptic number.

742025505520247 is a deficient number, since it is larger than the sum of its proper divisors (57956057819593).

742025505520247 is a wasteful number, since it uses less digits than its factorization.

742025505520247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62655198553.

The product of its (nonzero) digits is 7840000, while the sum is 50.

It can be divided in two parts, 74202550 and 5520247, that added together give a palindrome (79722797).

The spelling of 742025505520247 in words is "seven hundred forty-two trillion, twenty-five billion, five hundred five million, five hundred twenty thousand, two hundred forty-seven".