5421515 has 8 divisors (see below), whose sum is σ = 7097328. Its totient is φ = 3942880.

The previous prime is 5421511. The next prime is 5421527. The reversal of 5421515 is 5151245.

It is a happy number.

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

It is not a de Polignac number, because 5421515 - 2² = 5421511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5421511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49232 + ... + 49341.

It is an arithmetic number, because the mean of its divisors is an integer number (887166).

Almost surely, 2^5421515 is an apocalyptic number.

5421515 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5421515 is a deficient number, since it is larger than the sum of its proper divisors (1675813).

5421515 is a wasteful number, since it uses less digits than its factorization.

5421515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98589.

The product of its digits is 1000, while the sum is 23.

The square root of 5421515 is about 2328.4146967411. The cubic root of 5421515 is about 175.6737564255.

The spelling of 5421515 in words is "five million, four hundred twenty-one thousand, five hundred fifteen".