53531501 has 2 divisors, whose sum is σ = 53531502. Its totient is φ = 53531500.

The previous prime is 53531483. The next prime is 53531507. The reversal of 53531501 is 10513535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50197225 + 3334276 = 7085^2 + 1826^2 .

It is a cyclic number.

It is not a de Polignac number, because 53531501 - 2⁶ = 53531437 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53531507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26765750 + 26765751.

It is an arithmetic number, because the mean of its divisors is an integer number (26765751).

Almost surely, 2^53531501 is an apocalyptic number.

It is an amenable number.

53531501 is a deficient number, since it is larger than the sum of its proper divisors (1).

53531501 is an equidigital number, since it uses as much as digits as its factorization.

53531501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 53531501 is about 7316.5224663087. The cubic root of 53531501 is about 376.8800426066.

The spelling of 53531501 in words is "fifty-three million, five hundred thirty-one thousand, five hundred one".