55901789 has 4 divisors (see below), whose sum is σ = 55920480. Its totient is φ = 55883100.

The previous prime is 55901719. The next prime is 55901801. The reversal of 55901789 is 98710955.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55901789 - 2⁸ = 55901533 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 (55901719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3737 + ... + 11214.

It is an arithmetic number, because the mean of its divisors is an integer number (13980120).

Almost surely, 2^55901789 is an apocalyptic number.

It is an amenable number.

55901789 is a deficient number, since it is larger than the sum of its proper divisors (18691).

55901789 is a wasteful number, since it uses less digits than its factorization.

55901789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18690.

The product of its (nonzero) digits is 113400, while the sum is 44.

The square root of 55901789 is about 7476.7498955094. The cubic root of 55901789 is about 382.3624498654.

The spelling of 55901789 in words is "fifty-five million, nine hundred one thousand, seven hundred eighty-nine".