55072475 has 6 divisors (see below), whose sum is σ = 68289900. Its totient is φ = 44057960.

The previous prime is 55072453. The next prime is 55072483. The reversal of 55072475 is 57427055.

It is a happy number.

It is not a de Polignac number, because 55072475 - 2¹² = 55068379 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1101425 + ... + 1101474.

It is an arithmetic number, because the mean of its divisors is an integer number (11381650).

Almost surely, 2^55072475 is an apocalyptic number.

55072475 is a deficient number, since it is larger than the sum of its proper divisors (13217425).

55072475 is a wasteful number, since it uses less digits than its factorization.

55072475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202909 (or 2202904 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 55072475 is about 7421.0831419679. The cubic root of 55072475 is about 380.4622145638.

The spelling of 55072475 in words is "fifty-five million, seventy-two thousand, four hundred seventy-five".