2515426 has 4 divisors (see below), whose sum is σ = 3773142. Its totient is φ = 1257712.

The previous prime is 2515417. The next prime is 2515427. The reversal of 2515426 is 6245152.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2356225 + 159201 = 1535^2 + 399^2 .

It is a super-2 number, since 2×2515426² = 12654735922952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2515426.

It is not an unprimeable number, because it can be changed into a prime (2515427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628855 + ... + 628858.

2^2515426 is an apocalyptic number.

2515426 is a deficient number, since it is larger than the sum of its proper divisors (1257716).

2515426 is a wasteful number, since it uses less digits than its factorization.

2515426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257715.

The product of its digits is 2400, while the sum is 25.

The square root of 2515426 is about 1586.0094577272. The cubic root of 2515426 is about 135.9994593404. Note that the first 3 decimals are identical.

It can be divided in two parts, 25 and 15426, that added together give a palindrome (15451).

The spelling of 2515426 in words is "two million, five hundred fifteen thousand, four hundred twenty-six".