55697345 has 8 divisors (see below), whose sum is σ = 72912960. Its totient is φ = 40507120.

The previous prime is 55697333. The next prime is 55697347. The reversal of 55697345 is 54379655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55697345 - 2⁶ = 55697281 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55697296 and 55697305.

It is not an unprimeable number, because it can be changed into a prime (55697347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506285 + ... + 506394.

It is an arithmetic number, because the mean of its divisors is an integer number (9114120).

Almost surely, 2^55697345 is an apocalyptic number.

55697345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55697345 is a deficient number, since it is larger than the sum of its proper divisors (17215615).

55697345 is a wasteful number, since it uses less digits than its factorization.

55697345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012695.

The product of its digits is 567000, while the sum is 44.

The square root of 55697345 is about 7463.0653889672. The cubic root of 55697345 is about 381.8957552049.

The spelling of 55697345 in words is "fifty-five million, six hundred ninety-seven thousand, three hundred forty-five".