15501253 has 2 divisors, whose sum is σ = 15501254. Its totient is φ = 15501252.

The previous prime is 15501251. The next prime is 15501293. The reversal of 15501253 is 35210551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12236004 + 3265249 = 3498^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 15501253 - 2¹ = 15501251 is a prime.

Together with 15501251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15501251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7750626 + 7750627.

It is an arithmetic number, because the mean of its divisors is an integer number (7750627).

Almost surely, 2^15501253 is an apocalyptic number.

It is an amenable number.

15501253 is a deficient number, since it is larger than the sum of its proper divisors (1).

15501253 is an equidigital number, since it uses as much as digits as its factorization.

15501253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 15501253 is about 3937.1630649492. The cubic root of 15501253 is about 249.3382659778.

The spelling of 15501253 in words is "fifteen million, five hundred one thousand, two hundred fifty-three".