55211025 has 12 divisors (see below), whose sum is σ = 91282352. Its totient is φ = 29445840.

The previous prime is 55211003. The next prime is 55211027. The reversal of 55211025 is 52011255.

It is not a de Polignac number, because 55211025 - 2⁸ = 55210769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55210992 and 55211010.

It is not an unprimeable number, because it can be changed into a prime (55211027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367999 + ... + 368148.

Almost surely, 2^55211025 is an apocalyptic number.

It is an amenable number.

55211025 is a deficient number, since it is larger than the sum of its proper divisors (36071327).

55211025 is a wasteful number, since it uses less digits than its factorization.

55211025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736160 (or 736155 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 55211025 is about 7430.4121689177. The cubic root of 55211025 is about 380.7809999266.

The spelling of 55211025 in words is "fifty-five million, two hundred eleven thousand, twenty-five".