55320535 has 8 divisors (see below), whose sum is σ = 66644496. Its totient is φ = 44083200.

The previous prime is 55320481. The next prime is 55320541. The reversal of 55320535 is 53502355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55320535 - 2²¹ = 53223383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20241 + ... + 22810.

It is an arithmetic number, because the mean of its divisors is an integer number (8330562).

Almost surely, 2^55320535 is an apocalyptic number.

55320535 is a deficient number, since it is larger than the sum of its proper divisors (11323961).

55320535 is a wasteful number, since it uses less digits than its factorization.

55320535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43313.

The product of its (nonzero) digits is 11250, while the sum is 28.

The square root of 55320535 is about 7437.7775578462. Note that the first 3 decimals coincide. The cubic root of 55320535 is about 381.0325909069.

It can be divided in two parts, 55320 and 535, that added together give a palindrome (55855).

The spelling of 55320535 in words is "fifty-five million, three hundred twenty thousand, five hundred thirty-five".