30155436031025 has 12 divisors (see below), whose sum is σ = 37778232853452. Its totient is φ = 23875644195840.

The previous prime is 30155436031001. The next prime is 30155436031027. The reversal of 30155436031025 is 52013063455103.

It can be written as a sum of positive squares in 6 ways, for example, as 3038244219136 + 27117191811889 = 1743056^2 + 5207417^2 .

It is not a de Polignac number, because 30155436031025 - 2⁶ = 30155436030961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30155436031025.

It is not an unprimeable number, because it can be changed into a prime (30155436031027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6217613252 + ... + 6217618101.

It is an arithmetic number, because the mean of its divisors is an integer number (3148186071121).

Almost surely, 2^{30155436031025} is an apocalyptic number.

It is an amenable number.

30155436031025 is a deficient number, since it is larger than the sum of its proper divisors (7622796822427).

30155436031025 is a wasteful number, since it uses less digits than its factorization.

30155436031025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12435231460 (or 12435231455 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 38.

Adding to 30155436031025 its reverse (52013063455103), we get a palindrome (82168499486128).

The spelling of 30155436031025 in words is "thirty trillion, one hundred fifty-five billion, four hundred thirty-six million, thirty-one thousand, twenty-five".