1051252760521 has 4 divisors (see below), whose sum is σ = 1106581853200. Its totient is φ = 995923667844.

The previous prime is 1051252760497. The next prime is 1051252760653. The reversal of 1051252760521 is 1250672521501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1051252760521 - 2⁵ = 1051252760489 is a prime.

It is a super-2 number, since 2×1051252760521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051252760021) 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, 27664546311 + ... + 27664546348.

It is an arithmetic number, because the mean of its divisors is an integer number (276645463300).

Almost surely, 2^{1051252760521} is an apocalyptic number.

It is an amenable number.

1051252760521 is a deficient number, since it is larger than the sum of its proper divisors (55329092679).

1051252760521 is an equidigital number, since it uses as much as digits as its factorization.

1051252760521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55329092678.

The product of its (nonzero) digits is 42000, while the sum is 37.

The spelling of 1051252760521 in words is "one trillion, fifty-one billion, two hundred fifty-two million, seven hundred sixty thousand, five hundred twenty-one".