55445151 has 8 divisors (see below), whose sum is σ = 74194864. Its totient is φ = 36829440.

The previous prime is 55445141. The next prime is 55445167. The reversal of 55445151 is 15154455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55445151 - 2⁵ = 55445119 is a prime.

It is a super-3 number, since 3×55445151³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55445141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32530 + ... + 34191.

It is an arithmetic number, because the mean of its divisors is an integer number (9274358).

Almost surely, 2^55445151 is an apocalyptic number.

55445151 is a deficient number, since it is larger than the sum of its proper divisors (18749713).

55445151 is a wasteful number, since it uses less digits than its factorization.

55445151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67001.

The product of its digits is 10000, while the sum is 30.

The square root of 55445151 is about 7446.1500790677. The cubic root of 55445151 is about 381.3184832276.

The spelling of 55445151 in words is "fifty-five million, four hundred forty-five thousand, one hundred fifty-one".