55340497 has 8 divisors (see below), whose sum is σ = 58035240. Its totient is φ = 52698240.

The previous prime is 55340489. The next prime is 55340501. The reversal of 55340497 is 79404355.

It can be written as a sum of positive squares in 4 ways, for example, as 14776336 + 40564161 = 3844^2 + 6369^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55340497 - 2³ = 55340489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55340437) 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, 10954 + ... + 15187.

It is an arithmetic number, because the mean of its divisors is an integer number (7254405).

Almost surely, 2^55340497 is an apocalyptic number.

It is an amenable number.

55340497 is a deficient number, since it is larger than the sum of its proper divisors (2694743).

55340497 is a wasteful number, since it uses less digits than its factorization.

55340497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26243.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 55340497 is about 7439.1193699254. The cubic root of 55340497 is about 381.0784163126.

Subtracting from 55340497 its sum of digits (37), we obtain a triangular number (55340460 = T₁₀₅₂₀).

The spelling of 55340497 in words is "fifty-five million, three hundred forty thousand, four hundred ninety-seven".