15490055 has 8 divisors (see below), whose sum is σ = 21243552. Its totient is φ = 10621728.

The previous prime is 15490039. The next prime is 15490081. The reversal of 15490055 is 55009451.

15490055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 15490055 - 2⁴ = 15490039 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, 221252 + ... + 221321.

It is an arithmetic number, because the mean of its divisors is an integer number (2655444).

Almost surely, 2^15490055 is an apocalyptic number.

15490055 is a deficient number, since it is larger than the sum of its proper divisors (5753497).

15490055 is an equidigital number, since it uses as much as digits as its factorization.

15490055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442585.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 15490055 is about 3935.7407180860. The cubic root of 15490055 is about 249.2782114239.

It can be divided in two parts, 154 and 90055, that added together give a palindrome (90209).

The spelling of 15490055 in words is "fifteen million, four hundred ninety thousand, fifty-five".