55036973 has 4 divisors (see below), whose sum is σ = 58274460. Its totient is φ = 51799488.

The previous prime is 55036957. The next prime is 55036987. The reversal of 55036973 is 37963055.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48135844 + 6901129 = 6938^2 + 2627^2 .

It is a cyclic number.

It is not a de Polignac number, because 55036973 - 2⁴ = 55036957 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 (55036913) 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, 1618718 + ... + 1618751.

It is an arithmetic number, because the mean of its divisors is an integer number (14568615).

Almost surely, 2^55036973 is an apocalyptic number.

It is an amenable number.

55036973 is a deficient number, since it is larger than the sum of its proper divisors (3237487).

55036973 is a wasteful number, since it uses less digits than its factorization.

55036973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237486.

The product of its (nonzero) digits is 85050, while the sum is 38.

The square root of 55036973 is about 7418.6907874638. The cubic root of 55036973 is about 380.3804430859.

The spelling of 55036973 in words is "fifty-five million, thirty-six thousand, nine hundred seventy-three".