63240515 has 16 divisors (see below), whose sum is σ = 81955776. Its totient is φ = 46569600.

The previous prime is 63240497. The next prime is 63240533. The reversal of 63240515 is 51504236.

It is an interprime number because it is at equal distance from previous prime (63240497) and next prime (63240533).

It is not a de Polignac number, because 63240515 - 2¹⁴ = 63224131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26210 + ... + 28520.

It is an arithmetic number, because the mean of its divisors is an integer number (5122236).

Almost surely, 2^63240515 is an apocalyptic number.

63240515 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

63240515 is a deficient number, since it is larger than the sum of its proper divisors (18715261).

63240515 is a wasteful number, since it uses less digits than its factorization.

63240515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 63240515 is about 7952.3905210949. The cubic root of 63240515 is about 398.4114391208.

The spelling of 63240515 in words is "sixty-three million, two hundred forty thousand, five hundred fifteen".