1051025657501 has 2 divisors, whose sum is σ = 1051025657502. Its totient is φ = 1051025657500.

The previous prime is 1051025657401. The next prime is 1051025657503. The reversal of 1051025657501 is 1057565201501.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 989249052100 + 61776605401 = 994610^2 + 248549^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051025657501 - 2¹⁰ = 1051025656477 is a prime.

It is a super-2 number, since 2×1051025657501² (a number of 25 digits) contains 22 as substring.

Together with 1051025657503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051025657503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525512828750 + 525512828751.

It is an arithmetic number, because the mean of its divisors is an integer number (525512828751).

Almost surely, 2^{1051025657501} is an apocalyptic number.

It is an amenable number.

1051025657501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051025657501 is an equidigital number, since it uses as much as digits as its factorization.

1051025657501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52500, while the sum is 38.

The spelling of 1051025657501 in words is "one trillion, fifty-one billion, twenty-five million, six hundred fifty-seven thousand, five hundred one".