53287797 has 16 divisors (see below), whose sum is σ = 72737280. Its totient is φ = 34690032.

The previous prime is 53287789. The next prime is 53287813. The reversal of 53287797 is 79778235.

It is not a de Polignac number, because 53287797 - 2³ = 53287789 is a prime.

It is a super-2 number, since 2×53287797² = 5679178618226418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53287727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27928 + ... + 29774.

It is an arithmetic number, because the mean of its divisors is an integer number (4546080).

Almost surely, 2^53287797 is an apocalyptic number.

It is an amenable number.

53287797 is a deficient number, since it is larger than the sum of its proper divisors (19449483).

53287797 is a wasteful number, since it uses less digits than its factorization.

53287797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072.

The product of its digits is 740880, while the sum is 48.

The square root of 53287797 is about 7299.8491080296. The cubic root of 53287797 is about 376.3072527233.

The spelling of 53287797 in words is "fifty-three million, two hundred eighty-seven thousand, seven hundred ninety-seven".