55120030142025 has 24 divisors (see below), whose sum is σ = 91167423603904. Its totient is φ = 29385852494400.

The previous prime is 55120030141997. The next prime is 55120030142041. The reversal of 55120030142025 is 52024103002155.

It is not a de Polignac number, because 55120030142025 - 2⁸ = 55120030141769 is a prime.

It is a super-2 number, since 2×55120030142025² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55120030141983 and 55120030142001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143518381 + ... + 143901930.

Almost surely, 2^{55120030142025} is an apocalyptic number.

It is an amenable number.

55120030142025 is a deficient number, since it is larger than the sum of its proper divisors (36047393461879).

55120030142025 is a wasteful number, since it uses less digits than its factorization.

55120030142025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287422881 (or 287422876 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 55120030142025 in words is "fifty-five trillion, one hundred twenty billion, thirty million, one hundred forty-two thousand, twenty-five".