53145015 has 96 divisors (see below), whose sum is σ = 110315520. Its totient is φ = 21373440.

The previous prime is 53145011. The next prime is 53145031. The reversal of 53145015 is 51054135.

It is not a de Polignac number, because 53145015 - 2² = 53145011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53145011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 597091 + ... + 597179.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 2^53145015 is an apocalyptic number.

53145015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53145015 is an abundant number, since it is smaller than the sum of its proper divisors (57170505).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53145015 is a wasteful number, since it uses less digits than its factorization.

53145015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 53145015 is about 7290.0627569315. The cubic root of 53145015 is about 375.9708532371.

The spelling of 53145015 in words is "fifty-three million, one hundred forty-five thousand, fifteen".