155055254401 has 2 divisors, whose sum is σ = 155055254402. Its totient is φ = 155055254400.

The previous prime is 155055254399. The next prime is 155055254447. The reversal of 155055254401 is 104452550551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154905216400 + 150038001 = 393580^2 + 12249^2 .

It is a cyclic number.

It is not a de Polignac number, because 155055254401 - 2¹ = 155055254399 is a prime.

Together with 155055254399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (155055954401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77527627200 + 77527627201.

It is an arithmetic number, because the mean of its divisors is an integer number (77527627201).

Almost surely, 2^155055254401 is an apocalyptic number.

It is an amenable number.

155055254401 is a deficient number, since it is larger than the sum of its proper divisors (1).

155055254401 is an equidigital number, since it uses as much as digits as its factorization.

155055254401 is an evil number, because the sum of its binary digits is even.

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

The spelling of 155055254401 in words is "one hundred fifty-five billion, fifty-five million, two hundred fifty-four thousand, four hundred one".