53345515 has 8 divisors (see below), whose sum is σ = 64181520. Its totient is φ = 42565152.

The previous prime is 53345497. The next prime is 53345531. The reversal of 53345515 is 51554335.

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 53345515 - 2¹⁷ = 53214443 is a prime.

It is a super-3 number, since 3×53345515³ (a number of 24 digits) contains 333 as substring.

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, 11769 + ... + 15658.

It is an arithmetic number, because the mean of its divisors is an integer number (8022690).

Almost surely, 2^53345515 is an apocalyptic number.

53345515 is a deficient number, since it is larger than the sum of its proper divisors (10836005).

53345515 is a wasteful number, since it uses less digits than its factorization.

53345515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27821.

The product of its digits is 22500, while the sum is 31.

The square root of 53345515 is about 7303.8014074864. The cubic root of 53345515 is about 376.4430678388.

The spelling of 53345515 in words is "fifty-three million, three hundred forty-five thousand, five hundred fifteen".