155244452214425 has 18 divisors (see below), whose sum is σ = 223932201685758. Its totient is φ = 106453338660480.

The previous prime is 155244452214409. The next prime is 155244452214427. The reversal of 155244452214425 is 524412254442551.

It can be written as a sum of positive squares in 3 ways, for example, as 616545321616 + 154627906892809 = 785204^2 + 12434947^2 .

It is not a de Polignac number, because 155244452214425 - 2⁴ = 155244452214409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155244452214427) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 63365081312 + ... + 63365083761.

It is an arithmetic number, because the mean of its divisors is an integer number (12440677871431).

Almost surely, 2^{155244452214425} is an apocalyptic number.

It is an amenable number.

155244452214425 is a deficient number, since it is larger than the sum of its proper divisors (68687749471333).

155244452214425 is a wasteful number, since it uses less digits than its factorization.

155244452214425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126730165097 (or 126730165085 counting only the distinct ones).

The product of its digits is 10240000, while the sum is 50.

The spelling of 155244452214425 in words is "one hundred fifty-five trillion, two hundred forty-four billion, four hundred fifty-two million, two hundred fourteen thousand, four hundred twenty-five".