55357133 has 6 divisors (see below), whose sum is σ = 59943114. Its totient is φ = 51098736.

The previous prime is 55357129. The next prime is 55357147. The reversal of 55357133 is 33175355.

It can be written as a sum of positive squares in 3 ways, for example, as 996004 + 54361129 = 998^2 + 7373^2 .

It is not a de Polignac number, because 55357133 - 2² = 55357129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55357133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55357153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163610 + ... + 163947.

It is an arithmetic number, because the mean of its divisors is an integer number (9990519).

Almost surely, 2^55357133 is an apocalyptic number.

It is an amenable number.

55357133 is a deficient number, since it is larger than the sum of its proper divisors (4585981).

55357133 is a wasteful number, since it uses less digits than its factorization.

55357133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327583 (or 327570 counting only the distinct ones).

The product of its digits is 23625, while the sum is 32.

The square root of 55357133 is about 7440.2374290072. The cubic root of 55357133 is about 381.1165980284.

The spelling of 55357133 in words is "fifty-five million, three hundred fifty-seven thousand, one hundred thirty-three".