55878359 has 4 divisors (see below), whose sum is σ = 56585760. Its totient is φ = 55170960.

The previous prime is 55878343. The next prime is 55878391. The reversal of 55878359 is 95387855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95387855 = 5 ⋅19077571.

It is a cyclic number.

It is not a de Polignac number, because 55878359 - 2⁴ = 55878343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55878659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353582 + ... + 353739.

It is an arithmetic number, because the mean of its divisors is an integer number (14146440).

Almost surely, 2^55878359 is an apocalyptic number.

55878359 is a deficient number, since it is larger than the sum of its proper divisors (707401).

55878359 is an equidigital number, since it uses as much as digits as its factorization.

55878359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707400.

The product of its digits is 1512000, while the sum is 50.

The square root of 55878359 is about 7475.1828740172. The cubic root of 55878359 is about 382.3090228089.

The spelling of 55878359 in words is "fifty-five million, eight hundred seventy-eight thousand, three hundred fifty-nine".