55722097 has 16 divisors (see below), whose sum is σ = 59361280. Its totient is φ = 52228800.

The previous prime is 55722083. The next prime is 55722101. The reversal of 55722097 is 79022755.

It is not a de Polignac number, because 55722097 - 2¹⁹ = 55197809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55722047) 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, 149203 + ... + 149575.

It is an arithmetic number, because the mean of its divisors is an integer number (3710080).

Almost surely, 2^55722097 is an apocalyptic number.

It is an amenable number.

55722097 is a deficient number, since it is larger than the sum of its proper divisors (3639183).

55722097 is a wasteful number, since it uses less digits than its factorization.

55722097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 55722097 is about 7464.7235045914. The cubic root of 55722097 is about 381.9523185463.

The spelling of 55722097 in words is "fifty-five million, seven hundred twenty-two thousand, ninety-seven".