40025522 has 4 divisors (see below), whose sum is σ = 60038286. Its totient is φ = 20012760.

The previous prime is 40025519. The next prime is 40025551. The reversal of 40025522 is 22552004.

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., 38925121 + 1100401 = 6239^2 + 1049^2 .

It is a super-2 number, since 2×40025522² = 3204084822744968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40025494 and 40025503.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006379 + ... + 10006382.

Almost surely, 2^40025522 is an apocalyptic number.

40025522 is a deficient number, since it is larger than the sum of its proper divisors (20012764).

40025522 is a wasteful number, since it uses less digits than its factorization.

40025522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20012763.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 40025522 is about 6326.5726898535. The cubic root of 40025522 is about 342.0679105478.

Adding to 40025522 its reverse (22552004), we get a palindrome (62577526).

The spelling of 40025522 in words is "forty million, twenty-five thousand, five hundred twenty-two".