52078149 has 6 divisors (see below), whose sum is σ = 75224006. Its totient is φ = 34718760.

The previous prime is 52078111. The next prime is 52078181. The reversal of 52078149 is 94187025.

It can be written as a sum of positive squares in only one way, i.e., 51581124 + 497025 = 7182^2 + 705^2 .

It is not a de Polignac number, because 52078149 - 2⁹ = 52077637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52078189) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2893222 + ... + 2893239.

Almost surely, 2^52078149 is an apocalyptic number.

It is an amenable number.

52078149 is a deficient number, since it is larger than the sum of its proper divisors (23145857).

52078149 is a wasteful number, since it uses less digits than its factorization.

52078149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5786467 (or 5786464 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 52078149 is about 7216.5191747823. The cubic root of 52078149 is about 373.4380041507.

The spelling of 52078149 in words is "fifty-two million, seventy-eight thousand, one hundred forty-nine".