1051451613225 has 72 divisors (see below), whose sum is σ = 2093557170432. Its totient is φ = 500939683200.

The previous prime is 1051451613217. The next prime is 1051451613271. The reversal of 1051451613225 is 5223161541501.

1051451613225 is a `hidden beast` number, since 1 + 0 + 5 + 1 + 4 + 516 + 132 + 2 + 5 = 666.

1051451613225 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1051451613225 - 2³ = 1051451613217 is a prime.

It is a super-2 number, since 2×1051451613225² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051451613225.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5707239 + ... + 5888588.

Almost surely, 2^{1051451613225} is an apocalyptic number.

1051451613225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1051451613225 is a deficient number, since it is larger than the sum of its proper divisors (1042105557207).

1051451613225 is a wasteful number, since it uses less digits than its factorization.

1051451613225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11595887 (or 11595879 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 1051451613225 in words is "one trillion, fifty-one billion, four hundred fifty-one million, six hundred thirteen thousand, two hundred twenty-five".