245554501432397 has 2 divisors, whose sum is σ = 245554501432398. Its totient is φ = 245554501432396.

The previous prime is 245554501432391. The next prime is 245554501432481. The reversal of 245554501432397 is 793234105455542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204175206642121 + 41379294790276 = 14288989^2 + 6432674^2 .

It is a cyclic number.

It is not a de Polignac number, because 245554501432397 - 2⁴ = 245554501432381 is a prime.

It is a super-2 number, since 2×245554501432397² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245554501432391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122777250716198 + 122777250716199.

It is an arithmetic number, because the mean of its divisors is an integer number (122777250716199).

Almost surely, 2^{245554501432397} is an apocalyptic number.

It is an amenable number.

245554501432397 is a deficient number, since it is larger than the sum of its proper divisors (1).

245554501432397 is an equidigital number, since it uses as much as digits as its factorization.

245554501432397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720000, while the sum is 59.

The spelling of 245554501432397 in words is "two hundred forty-five trillion, five hundred fifty-four billion, five hundred one million, four hundred thirty-two thousand, three hundred ninety-seven".