1053278723501 has 4 divisors (see below), whose sum is σ = 1053336446172. Its totient is φ = 1053221000832.

The previous prime is 1053278723489. The next prime is 1053278723551.

1053278723501 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51608026276 + 1001670697225 = 227174^2 + 1000835^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053278723501 - 2³⁰ = 1052204981677 is a prime.

It is a super-2 number, since 2×1053278723501² (a number of 25 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 (1053278723551) 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, 28833956 + ... + 28870461.

It is an arithmetic number, because the mean of its divisors is an integer number (263334111543).

Almost surely, 2^{1053278723501} is an apocalyptic number.

It is an amenable number.

1053278723501 is a deficient number, since it is larger than the sum of its proper divisors (57722671).

1053278723501 is an equidigital number, since it uses as much as digits as its factorization.

1053278723501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57722670.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 1053278723501 in words is "one trillion, fifty-three billion, two hundred seventy-eight million, seven hundred twenty-three thousand, five hundred one".