55742193 has 12 divisors (see below), whose sum is σ = 86710260. Its totient is φ = 34302816.

The previous prime is 55742189. The next prime is 55742249. The reversal of 55742193 is 39124755.

It can be written as a sum of positive squares in 2 ways, for example, as 12616704 + 43125489 = 3552^2 + 6567^2 .

It is not a de Polignac number, because 55742193 - 2² = 55742189 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55742153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238098 + ... + 238331.

It is an arithmetic number, because the mean of its divisors is an integer number (7225855).

Almost surely, 2^55742193 is an apocalyptic number.

It is an amenable number.

55742193 is a deficient number, since it is larger than the sum of its proper divisors (30968067).

55742193 is a wasteful number, since it uses less digits than its factorization.

55742193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476448 (or 476445 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 55742193 is about 7466.0694478420. The cubic root of 55742193 is about 381.9982296639.

The spelling of 55742193 in words is "fifty-five million, seven hundred forty-two thousand, one hundred ninety-three".