52897905 has 12 divisors (see below), whose sum is σ = 91689780. Its totient is φ = 28212192.

The previous prime is 52897903. The next prime is 52897909. The reversal of 52897905 is 50979825.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10751841 + 42146064 = 3279^2 + 6492^2 .

It is not a de Polignac number, because 52897905 - 2¹ = 52897903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1175509 = 52897905 / (5 + 2 + 8 + 9 + 7 + 9 + 0 + 5).

It is not an unprimeable number, because it can be changed into a prime (52897903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 587710 + ... + 587799.

It is an arithmetic number, because the mean of its divisors is an integer number (7640815).

Almost surely, 2^52897905 is an apocalyptic number.

It is an amenable number.

52897905 is a deficient number, since it is larger than the sum of its proper divisors (38791875).

52897905 is a wasteful number, since it uses less digits than its factorization.

52897905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175520 (or 1175517 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 52897905 is about 7273.0945958375. The cubic root of 52897905 is about 375.3872266770.

The spelling of 52897905 in words is "fifty-two million, eight hundred ninety-seven thousand, nine hundred five".