15525151 has 2 divisors, whose sum is σ = 15525152. Its totient is φ = 15525150.

The previous prime is 15525091. The next prime is 15525157. The reversal of 15525151 is 15152551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15525151 - 2¹⁷ = 15394079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15525157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7762575 + 7762576.

It is an arithmetic number, because the mean of its divisors is an integer number (7762576).

Almost surely, 2^15525151 is an apocalyptic number.

15525151 is a deficient number, since it is larger than the sum of its proper divisors (1).

15525151 is an equidigital number, since it uses as much as digits as its factorization.

15525151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1250, while the sum is 25.

The square root of 15525151 is about 3940.1968224950. The cubic root of 15525151 is about 249.4663336113.

It can be divided in two parts, 1552515 and 1, that added together give a square (1552516 = 1246²).

The spelling of 15525151 in words is "fifteen million, five hundred twenty-five thousand, one hundred fifty-one".