2051052245551 has 2 divisors, whose sum is σ = 2051052245552. Its totient is φ = 2051052245550.

The previous prime is 2051052245537. The next prime is 2051052245609. The reversal of 2051052245551 is 1555422501502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2051052245551 - 2²⁵ = 2051018691119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2051052245551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2051052285551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025526122775 + 1025526122776.

It is an arithmetic number, because the mean of its divisors is an integer number (1025526122776).

Almost surely, 2^{2051052245551} is an apocalyptic number.

2051052245551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051052245551 is an equidigital number, since it uses as much as digits as its factorization.

2051052245551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100000, while the sum is 37.

The spelling of 2051052245551 in words is "two trillion, fifty-one billion, fifty-two million, two hundred forty-five thousand, five hundred fifty-one".