55012533 has 8 divisors (see below), whose sum is σ = 73910496. Its totient is φ = 36394800.

The previous prime is 55012511. The next prime is 55012537. The reversal of 55012533 is 33521055.

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

It is not a de Polignac number, because 55012533 - 2²⁴ = 38235317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55012537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69598 + ... + 70383.

It is an arithmetic number, because the mean of its divisors is an integer number (9238812).

Almost surely, 2^55012533 is an apocalyptic number.

It is an amenable number.

55012533 is a deficient number, since it is larger than the sum of its proper divisors (18897963).

55012533 is a wasteful number, since it uses less digits than its factorization.

55012533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140115.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 55012533 is about 7417.0434136521. The cubic root of 55012533 is about 380.3241301872.

Adding to 55012533 its reverse (33521055), we get a palindrome (88533588).

The spelling of 55012533 in words is "fifty-five million, twelve thousand, five hundred thirty-three".