55516375 has 8 divisors (see below), whose sum is σ = 69284592. Its totient is φ = 44413000.

The previous prime is 55516361. The next prime is 55516403. The reversal of 55516375 is 57361555.

It is not a de Polignac number, because 55516375 - 2⁵ = 55516343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221941 + ... + 222190.

It is an arithmetic number, because the mean of its divisors is an integer number (8660574).

Almost surely, 2^55516375 is an apocalyptic number.

55516375 is a deficient number, since it is larger than the sum of its proper divisors (13768217).

55516375 is an equidigital number, since it uses as much as digits as its factorization.

55516375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444146 (or 444136 counting only the distinct ones).

The product of its digits is 78750, while the sum is 37.

The square root of 55516375 is about 7450.9311498631. The cubic root of 55516375 is about 381.4816920090.

The spelling of 55516375 in words is "fifty-five million, five hundred sixteen thousand, three hundred seventy-five".