2501522 has 4 divisors (see below), whose sum is σ = 3752286. Its totient is φ = 1250760.

The previous prime is 2501507. The next prime is 2501563. The reversal of 2501522 is 2251052.

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., 2493241 + 8281 = 1579^2 + 91^2 .

It is a super-2 number, since 2×2501522² = 12515224632968, 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 2501522.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625379 + ... + 625382.

2^2501522 is an apocalyptic number.

2501522 is a deficient number, since it is larger than the sum of its proper divisors (1250764).

2501522 is a wasteful number, since it uses less digits than its factorization.

2501522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250763.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2501522 is about 1581.6200555127. The cubic root of 2501522 is about 135.7484175331.

Adding to 2501522 its reverse (2251052), we get a palindrome (4752574).

The spelling of 2501522 in words is "two million, five hundred one thousand, five hundred twenty-two".