52400149 has 2 divisors, whose sum is σ = 52400150. Its totient is φ = 52400148.

The previous prime is 52400087. The next prime is 52400167. The reversal of 52400149 is 94100425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51581124 + 819025 = 7182^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 52400149 - 2¹³ = 52391957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52400189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26200074 + 26200075.

It is an arithmetic number, because the mean of its divisors is an integer number (26200075).

Almost surely, 2^52400149 is an apocalyptic number.

It is an amenable number.

52400149 is a deficient number, since it is larger than the sum of its proper divisors (1).

52400149 is an equidigital number, since it uses as much as digits as its factorization.

52400149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 52400149 is about 7238.7947201174. The cubic root of 52400149 is about 374.2060809589.

The spelling of 52400149 in words is "fifty-two million, four hundred thousand, one hundred forty-nine".