55973351 has 4 divisors (see below), whose sum is σ = 63969552. Its totient is φ = 47977152.

The previous prime is 55973339. The next prime is 55973363. The reversal of 55973351 is 15337955.

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

It is an interprime number because it is at equal distance from previous prime (55973339) and next prime (55973363).

It is a cyclic number.

It is not a de Polignac number, because 55973351 - 2¹⁰ = 55972327 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 (55973371) 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, 3998090 + ... + 3998103.

It is an arithmetic number, because the mean of its divisors is an integer number (15992388).

Almost surely, 2^55973351 is an apocalyptic number.

55973351 is a deficient number, since it is larger than the sum of its proper divisors (7996201).

55973351 is an equidigital number, since it uses as much as digits as its factorization.

55973351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7996200.

The product of its digits is 70875, while the sum is 38.

The square root of 55973351 is about 7481.5340004574. The cubic root of 55973351 is about 382.5255391836.

The spelling of 55973351 in words is "fifty-five million, nine hundred seventy-three thousand, three hundred fifty-one".