55271625 has 16 divisors (see below), whose sum is σ = 91972608. Its totient is φ = 29478000.

The previous prime is 55271621. The next prime is 55271647. The reversal of 55271625 is 52617255.

It is not a de Polignac number, because 55271625 - 2² = 55271621 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (55271621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73321 + ... + 74070.

It is an arithmetic number, because the mean of its divisors is an integer number (5748288).

Almost surely, 2^55271625 is an apocalyptic number.

It is an amenable number.

55271625 is a deficient number, since it is larger than the sum of its proper divisors (36700983).

55271625 is a wasteful number, since it uses less digits than its factorization.

55271625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147409 (or 147399 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 55271625 is about 7434.4888862651. The cubic root of 55271625 is about 380.9202649327.

The spelling of 55271625 in words is "fifty-five million, two hundred seventy-one thousand, six hundred twenty-five".