15222560 has 48 divisors (see below), whose sum is σ = 36401400. Its totient is φ = 6014976.

The previous prime is 15222547. The next prime is 15222583. The reversal of 15222560 is 6522251.

It can be written as a sum of positive squares in 4 ways, for example, as 9709456 + 5513104 = 3116^2 + 2348^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13706 + ... + 14774.

Almost surely, 2^15222560 is an apocalyptic number.

15222560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15222560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18200700).

15222560 is an abundant number, since it is smaller than the sum of its proper divisors (21178840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15222560 is a wasteful number, since it uses less digits than its factorization.

15222560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 15222560 is about 3901.6099241211. The cubic root of 15222560 is about 247.8349578279.

The spelling of 15222560 in words is "fifteen million, two hundred twenty-two thousand, five hundred sixty".