55522071 has 32 divisors (see below), whose sum is σ = 91031040. Its totient is φ = 33163200.

The previous prime is 55522057. The next prime is 55522091. The reversal of 55522071 is 17022555.

It is a happy number.

It is not a de Polignac number, because 55522071 - 2⁶ = 55522007 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55522001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19771 + ... + 22403.

It is an arithmetic number, because the mean of its divisors is an integer number (2844720).

Almost surely, 2^55522071 is an apocalyptic number.

55522071 is a deficient number, since it is larger than the sum of its proper divisors (35508969).

55522071 is a wasteful number, since it uses less digits than its factorization.

55522071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724 (or 2718 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 55522071 is about 7451.3133741643. The cubic root of 55522071 is about 381.4947382823.

The spelling of 55522071 in words is "fifty-five million, five hundred twenty-two thousand, seventy-one".