15252510121 has 8 divisors (see below), whose sum is σ = 15314480064. Its totient is φ = 15190636560.

The previous prime is 15252510103. The next prime is 15252510127. The reversal of 15252510121 is 12101525251.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15252510121 - 2¹⁵ = 15252477353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15252510127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301935 + ... + 348811.

It is an arithmetic number, because the mean of its divisors is an integer number (1914310008).

Almost surely, 2^15252510121 is an apocalyptic number.

It is an amenable number.

15252510121 is a deficient number, since it is larger than the sum of its proper divisors (61969943).

15252510121 is an equidigital number, since it uses as much as digits as its factorization.

15252510121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48191.

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 15252510121 in words is "fifteen billion, two hundred fifty-two million, five hundred ten thousand, one hundred twenty-one".