55919433 has 16 divisors (see below), whose sum is σ = 76628160. Its totient is φ = 36258816.

The previous prime is 55919419. The next prime is 55919441. The reversal of 55919433 is 33491955.

It is not a de Polignac number, because 55919433 - 2⁵ = 55919401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55919391 and 55919400.

It is not an unprimeable number, because it can be changed into a prime (55919483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15541 + ... + 18797.

It is an arithmetic number, because the mean of its divisors is an integer number (4789260).

Almost surely, 2^55919433 is an apocalyptic number.

It is an amenable number.

55919433 is a deficient number, since it is larger than the sum of its proper divisors (20708727).

55919433 is a wasteful number, since it uses less digits than its factorization.

55919433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3416.

The product of its digits is 72900, while the sum is 39.

The square root of 55919433 is about 7477.9297268696. The cubic root of 55919433 is about 382.4026733450.

The spelling of 55919433 in words is "fifty-five million, nine hundred nineteen thousand, four hundred thirty-three".