55533967 has 4 divisors (see below), whose sum is σ = 56888496. Its totient is φ = 54179440.

The previous prime is 55533943. The next prime is 55533997. The reversal of 55533967 is 76933555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55533967 - 2¹⁹ = 55009679 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 (55533997) 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, 677203 + ... + 677284.

It is an arithmetic number, because the mean of its divisors is an integer number (14222124).

Almost surely, 2^55533967 is an apocalyptic number.

55533967 is a deficient number, since it is larger than the sum of its proper divisors (1354529).

55533967 is a wasteful number, since it uses less digits than its factorization.

55533967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354528.

The product of its digits is 425250, while the sum is 43.

The square root of 55533967 is about 7452.1115799483. Note that the first 3 decimals coincide. The cubic root of 55533967 is about 381.5219823269.

The spelling of 55533967 in words is "fifty-five million, five hundred thirty-three thousand, nine hundred sixty-seven".