53725501 has 2 divisors, whose sum is σ = 53725502. Its totient is φ = 53725500.

The previous prime is 53725499. The next prime is 53725513. The reversal of 53725501 is 10552735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53670276 + 55225 = 7326^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 53725501 - 2¹ = 53725499 is a prime.

Together with 53725499, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 53725501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53725531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26862750 + 26862751.

It is an arithmetic number, because the mean of its divisors is an integer number (26862751).

Almost surely, 2^53725501 is an apocalyptic number.

It is an amenable number.

53725501 is a deficient number, since it is larger than the sum of its proper divisors (1).

53725501 is an equidigital number, since it uses as much as digits as its factorization.

53725501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 53725501 is about 7329.7681409442. The cubic root of 53725501 is about 377.3347691437.

The spelling of 53725501 in words is "fifty-three million, seven hundred twenty-five thousand, five hundred one".