245554511551051 has 2 divisors, whose sum is σ = 245554511551052. Its totient is φ = 245554511551050.

The previous prime is 245554511551049. The next prime is 245554511551121. The reversal of 245554511551051 is 150155115455542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245554511551051 - 2¹ = 245554511551049 is a prime.

Together with 245554511551049, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 245554511550986 and 245554511551004.

It is not a weakly prime, because it can be changed into another prime (245554511551351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122777255775525 + 122777255775526.

It is an arithmetic number, because the mean of its divisors is an integer number (122777255775526).

Almost surely, 2^{245554511551051} is an apocalyptic number.

245554511551051 is a deficient number, since it is larger than the sum of its proper divisors (1).

245554511551051 is an equidigital number, since it uses as much as digits as its factorization.

245554511551051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2500000, while the sum is 49.

The spelling of 245554511551051 in words is "two hundred forty-five trillion, five hundred fifty-four billion, five hundred eleven million, five hundred fifty-one thousand, fifty-one".