15225020087 has 8 divisors (see below), whose sum is σ = 15583430304. Its totient is φ = 14870659968.

The previous prime is 15225019973. The next prime is 15225020101. The reversal of 15225020087 is 78002052251.

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 15225020087 - 2²² = 15220825783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15225026087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004918 + ... + 1019955.

It is an arithmetic number, because the mean of its divisors is an integer number (1947928788).

Almost surely, 2^15225020087 is an apocalyptic number.

15225020087 is a deficient number, since it is larger than the sum of its proper divisors (358410217).

15225020087 is a wasteful number, since it uses less digits than its factorization.

15225020087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025049.

The product of its (nonzero) digits is 11200, while the sum is 32.

The spelling of 15225020087 in words is "fifteen billion, two hundred twenty-five million, twenty thousand, eighty-seven".