10251445561505 has 32 divisors (see below), whose sum is σ = 13150464566400. Its totient is φ = 7649614080000.

The previous prime is 10251445561369. The next prime is 10251445561531. The reversal of 10251445561505 is 50516554415201.

It is not a de Polignac number, because 10251445561505 - 2¹⁰ = 10251445560481 is a prime.

It is a super-2 number, since 2×10251445561505² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1266896 + ... + 4701905.

It is an arithmetic number, because the mean of its divisors is an integer number (410952017700).

Almost surely, 2^{10251445561505} is an apocalyptic number.

It is an amenable number.

10251445561505 is a deficient number, since it is larger than the sum of its proper divisors (2899019004895).

10251445561505 is a wasteful number, since it uses less digits than its factorization.

10251445561505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969105.

The product of its (nonzero) digits is 600000, while the sum is 44.

Adding to 10251445561505 its reverse (50516554415201), we get a palindrome (60767999976706).

The spelling of 10251445561505 in words is "ten trillion, two hundred fifty-one billion, four hundred forty-five million, five hundred sixty-one thousand, five hundred five".