55021503025 has 12 divisors (see below), whose sum is σ = 69048674352. Its totient is φ = 43486873040.

The previous prime is 55021503011. The next prime is 55021503067. The reversal of 55021503025 is 52030512055.

It is not a de Polignac number, because 55021503025 - 2³¹ = 52874019377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55021502984 and 55021503002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13256119 + ... + 13260268.

It is an arithmetic number, because the mean of its divisors is an integer number (5754056196).

Almost surely, 2^55021503025 is an apocalyptic number.

It is an amenable number.

55021503025 is a deficient number, since it is larger than the sum of its proper divisors (14027171327).

55021503025 is a wasteful number, since it uses less digits than its factorization.

55021503025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26516480 (or 26516475 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The spelling of 55021503025 in words is "fifty-five billion, twenty-one million, five hundred three thousand, twenty-five".