55140359 has 2 divisors, whose sum is σ = 55140360. Its totient is φ = 55140358.

The previous prime is 55140347. The next prime is 55140377. The reversal of 55140359 is 95304155.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55140359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55145359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27570179 + 27570180.

It is an arithmetic number, because the mean of its divisors is an integer number (27570180).

Almost surely, 2^55140359 is an apocalyptic number.

55140359 is a deficient number, since it is larger than the sum of its proper divisors (1).

55140359 is an equidigital number, since it uses as much as digits as its factorization.

55140359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 55140359 is about 7425.6554592844. The cubic root of 55140359 is about 380.6184734596.

The spelling of 55140359 in words is "fifty-five million, one hundred forty thousand, three hundred fifty-nine".