15450055 has 4 divisors (see below), whose sum is σ = 18540072. Its totient is φ = 12360040.

The previous prime is 15450041. The next prime is 15450067. The reversal of 15450055 is 55005451.

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

It is not a de Polignac number, because 15450055 - 2⁷ = 15449927 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 3 ways as a sum of consecutive naturals, for example, 1545001 + ... + 1545010.

It is an arithmetic number, because the mean of its divisors is an integer number (4635018).

Almost surely, 2^15450055 is an apocalyptic number.

15450055 is a deficient number, since it is larger than the sum of its proper divisors (3090017).

15450055 is an equidigital number, since it uses as much as digits as its factorization.

15450055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090016.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 15450055 is about 3930.6557977009. The cubic root of 15450055 is about 249.0634559219.

The spelling of 15450055 in words is "fifteen million, four hundred fifty thousand, fifty-five".