55445351 has 12 divisors (see below), whose sum is σ = 61668072. Its totient is φ = 49791456.

The previous prime is 55445333. The next prime is 55445353. The reversal of 55445351 is 15354455.

It is a de Polignac number, because none of the positive numbers 2^k-55445351 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 (55445353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1820 + ... + 10686.

It is an arithmetic number, because the mean of its divisors is an integer number (5139006).

Almost surely, 2^55445351 is an apocalyptic number.

55445351 is a deficient number, since it is larger than the sum of its proper divisors (6222721).

55445351 is a wasteful number, since it uses less digits than its factorization.

55445351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8930 (or 8917 counting only the distinct ones).

The product of its digits is 30000, while the sum is 32.

The square root of 55445351 is about 7446.1635088145. The cubic root of 55445351 is about 381.3189417204.

The spelling of 55445351 in words is "fifty-five million, four hundred forty-five thousand, three hundred fifty-one".