53312545 has 32 divisors (see below), whose sum is σ = 75769344. Its totient is φ = 35500800.

The previous prime is 53312543. The next prime is 53312569. The reversal of 53312545 is 54521335.

53312545 = 1255² + 1256² + ... + 1287².

53312545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53312545 - 2¹ = 53312543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53312543) 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 31 ways as a sum of consecutive naturals, for example, 123480 + ... + 123910.

It is an arithmetic number, because the mean of its divisors is an integer number (2367792).

Almost surely, 2^53312545 is an apocalyptic number.

53312545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53312545 is a deficient number, since it is larger than the sum of its proper divisors (22456799).

53312545 is a wasteful number, since it uses less digits than its factorization.

53312545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633.

The product of its digits is 9000, while the sum is 28.

The square root of 53312545 is about 7301.5440147958. The cubic root of 53312545 is about 376.3654987701.

The spelling of 53312545 in words is "fifty-three million, three hundred twelve thousand, five hundred forty-five".