40216552 has 8 divisors (see below), whose sum is σ = 75406050. Its totient is φ = 20108272.

The previous prime is 40216541. The next prime is 40216619. The reversal of 40216552 is 25561204.

It can be written as a sum of positive squares in only one way, i.e., 38613796 + 1602756 = 6214^2 + 1266^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2513527 + ... + 2513542.

Almost surely, 2^40216552 is an apocalyptic number.

It is an amenable number.

40216552 is a deficient number, since it is larger than the sum of its proper divisors (35189498).

40216552 is a wasteful number, since it uses less digits than its factorization.

40216552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027075 (or 5027071 counting only the distinct ones).

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

The square root of 40216552 is about 6341.6521506623. The cubic root of 40216552 is about 342.6112434566.

Adding to 40216552 its reverse (25561204), we get a palindrome (65777756).

The spelling of 40216552 in words is "forty million, two hundred sixteen thousand, five hundred fifty-two".