52578045 has 32 divisors (see below), whose sum is σ = 100665600. Its totient is φ = 25883712.

The previous prime is 52578013. The next prime is 52578083. The reversal of 52578045 is 54087525.

It is a happy number.

It is not a de Polignac number, because 52578045 - 2⁵ = 52578013 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13225 + ... + 16734.

It is an arithmetic number, because the mean of its divisors is an integer number (3145800).

Almost surely, 2^52578045 is an apocalyptic number.

It is an amenable number.

52578045 is a deficient number, since it is larger than the sum of its proper divisors (48087555).

52578045 is a wasteful number, since it uses less digits than its factorization.

52578045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29986 (or 29980 counting only the distinct ones).

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

The square root of 52578045 is about 7251.0719897130. The cubic root of 52578045 is about 374.6290732232.

It can be divided in two parts, 525780 and 45, that added together give a triangular number (525825 = T₁₀₂₅).

The spelling of 52578045 in words is "fifty-two million, five hundred seventy-eight thousand, forty-five".