2515722 has 32 divisors (see below), whose sum is σ = 5612544. Its totient is φ = 745200.

The previous prime is 2515703. The next prime is 2515727. The reversal of 2515722 is 2275152.

It is a junction number, because it is equal to n+sod(n) for n = 2515692 and 2515701.

It is not an unprimeable number, because it can be changed into a prime (2515727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2697 + ... + 3507.

It is an arithmetic number, because the mean of its divisors is an integer number (175392).

2^2515722 is an apocalyptic number.

2515722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2515722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2806272).

2515722 is an abundant number, since it is smaller than the sum of its proper divisors (3096822).

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

2515722 is a wasteful number, since it uses less digits than its factorization.

2515722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874.

The product of its digits is 1400, while the sum is 24.

The square root of 2515722 is about 1586.1027709452. The cubic root of 2515722 is about 136.0047936603.

The spelling of 2515722 in words is "two million, five hundred fifteen thousand, seven hundred twenty-two".