2051251062551 has 2 divisors, whose sum is σ = 2051251062552. Its totient is φ = 2051251062550.

The previous prime is 2051251062529. The next prime is 2051251062589. The reversal of 2051251062551 is 1552601521502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2051251062551 - 2¹⁰ = 2051251061527 is a prime.

It is a super-3 number, since 3×2051251062551³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2051251062521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025625531275 + 1025625531276.

It is an arithmetic number, because the mean of its divisors is an integer number (1025625531276).

Almost surely, 2^{2051251062551} is an apocalyptic number.

2051251062551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051251062551 is an equidigital number, since it uses as much as digits as its factorization.

2051251062551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 2051251062551 in words is "two trillion, fifty-one billion, two hundred fifty-one million, sixty-two thousand, five hundred fifty-one".