52078545 has 24 divisors (see below), whose sum is σ = 93614976. Its totient is φ = 27774576.

The previous prime is 52078517. The next prime is 52078549. The reversal of 52078545 is 54587025.

It is a happy number.

It is not a de Polignac number, because 52078545 - 2⁵ = 52078513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52078549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20217 + ... + 22646.

It is an arithmetic number, because the mean of its divisors is an integer number (3900624).

Almost surely, 2^52078545 is an apocalyptic number.

It is an amenable number.

52078545 is a deficient number, since it is larger than the sum of its proper divisors (41536431).

52078545 is an equidigital number, since it uses as much as digits as its factorization.

52078545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42883 (or 42871 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 52078545 is about 7216.5466117805. The cubic root of 52078545 is about 373.4389506838.

The spelling of 52078545 in words is "fifty-two million, seventy-eight thousand, five hundred forty-five".