55073537 has 4 divisors (see below), whose sum is σ = 56416836. Its totient is φ = 53730240.

The previous prime is 55073483. The next prime is 55073563. The reversal of 55073537 is 73537055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73537055 = 5 ⋅14707411.

It can be written as a sum of positive squares in 2 ways, for example, as 7311616 + 47761921 = 2704^2 + 6911^2 .

It is a cyclic number.

It is not a de Polignac number, because 55073537 - 2¹⁴ = 55057153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55073497 and 55073506.

It is not an unprimeable number, because it can be changed into a prime (55073567) 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, 671588 + ... + 671669.

It is an arithmetic number, because the mean of its divisors is an integer number (14104209).

Almost surely, 2^55073537 is an apocalyptic number.

It is an amenable number.

55073537 is a deficient number, since it is larger than the sum of its proper divisors (1343299).

55073537 is a wasteful number, since it uses less digits than its factorization.

55073537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343298.

The product of its (nonzero) digits is 55125, while the sum is 35.

The square root of 55073537 is about 7421.1546945203. The cubic root of 55073537 is about 380.4646601186.

The spelling of 55073537 in words is "fifty-five million, seventy-three thousand, five hundred thirty-seven".