42500211212051 has 2 divisors, whose sum is σ = 42500211212052. Its totient is φ = 42500211212050.

The previous prime is 42500211211967. The next prime is 42500211212149. The reversal of 42500211212051 is 15021211200524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42500211212051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42500211212051.

It is not a weakly prime, because it can be changed into another prime (42500211512051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21250105606025 + 21250105606026.

It is an arithmetic number, because the mean of its divisors is an integer number (21250105606026).

Almost surely, 2^{42500211212051} is an apocalyptic number.

42500211212051 is a deficient number, since it is larger than the sum of its proper divisors (1).

42500211212051 is an equidigital number, since it uses as much as digits as its factorization.

42500211212051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 42500211212051 its reverse (15021211200524), we get a palindrome (57521422412575).

The spelling of 42500211212051 in words is "forty-two trillion, five hundred billion, two hundred eleven million, two hundred twelve thousand, fifty-one".