53442015 has 32 divisors (see below), whose sum is σ = 93920256. Its totient is φ = 25733760.

The previous prime is 53441977. The next prime is 53442017. The reversal of 53442015 is 51024435.

It is not a de Polignac number, because 53442015 - 2⁶ = 53441951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53442017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24874 + ... + 26936.

It is an arithmetic number, because the mean of its divisors is an integer number (2935008).

Almost surely, 2^53442015 is an apocalyptic number.

53442015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53442015 is a deficient number, since it is larger than the sum of its proper divisors (40478241).

53442015 is a wasteful number, since it uses less digits than its factorization.

53442015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 53442015 is about 7310.4045715678. The cubic root of 53442015 is about 376.6699214832.

It can be divided in two parts, 534420 and 15, that added together give a palindrome (534435).

The spelling of 53442015 in words is "fifty-three million, four hundred forty-two thousand, fifteen".