42251000551139 has 2 divisors, whose sum is σ = 42251000551140. Its totient is φ = 42251000551138.

The previous prime is 42251000551099. The next prime is 42251000551169. The reversal of 42251000551139 is 93115500015224.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42251000551139 - 2²⁰ = 42250999502563 is a prime.

It is not a weakly prime, because it can be changed into another prime (42251000551169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21125500275569 + 21125500275570.

It is an arithmetic number, because the mean of its divisors is an integer number (21125500275570).

Almost surely, 2^{42251000551139} is an apocalyptic number.

42251000551139 is a deficient number, since it is larger than the sum of its proper divisors (1).

42251000551139 is an equidigital number, since it uses as much as digits as its factorization.

42251000551139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 42251000551139 in words is "forty-two trillion, two hundred fifty-one billion, five hundred fifty-one thousand, one hundred thirty-nine".