2051251062501 has 4 divisors (see below), whose sum is σ = 2735001416672. Its totient is φ = 1367500708332.

The previous prime is 2051251062481. The next prime is 2051251062521. The reversal of 2051251062501 is 1052601521502.

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 an interprime number because it is at equal distance from previous prime (2051251062481) and next prime (2051251062521).

It is not a de Polignac number, because 2051251062501 - 2¹⁹ = 2051250538213 is a prime.

It is a super-2 number, since 2×2051251062501² (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 (2051251062521) 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, 341875177081 + ... + 341875177086.

It is an arithmetic number, because the mean of its divisors is an integer number (683750354168).

Almost surely, 2^{2051251062501} is an apocalyptic number.

It is an amenable number.

2051251062501 is a deficient number, since it is larger than the sum of its proper divisors (683750354171).

2051251062501 is an equidigital number, since it uses as much as digits as its factorization.

2051251062501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683750354170.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 2051251062501 in words is "two trillion, fifty-one billion, two hundred fifty-one million, sixty-two thousand, five hundred one".