53700247 has 2 divisors, whose sum is σ = 53700248. Its totient is φ = 53700246.

The previous prime is 53700233. The next prime is 53700259. The reversal of 53700247 is 74200735.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53700247 - 2²³ = 45311639 is a prime.

It is a super-2 number, since 2×53700247² = 5767433055722018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53700217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26850123 + 26850124.

It is an arithmetic number, because the mean of its divisors is an integer number (26850124).

Almost surely, 2^53700247 is an apocalyptic number.

53700247 is a deficient number, since it is larger than the sum of its proper divisors (1).

53700247 is an equidigital number, since it uses as much as digits as its factorization.

53700247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 53700247 is about 7328.0452373058. The cubic root of 53700247 is about 377.2756370397.

The spelling of 53700247 in words is "fifty-three million, seven hundred thousand, two hundred forty-seven".