40961553 has 8 divisors (see below), whose sum is σ = 56091648. Its totient is φ = 26569584.

The previous prime is 40961539. The next prime is 40961573. The reversal of 40961553 is 35516904.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40961553 - 2⁶ = 40961489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40961513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184401 + ... + 184622.

It is an arithmetic number, because the mean of its divisors is an integer number (7011456).

Almost surely, 2^40961553 is an apocalyptic number.

It is an amenable number.

40961553 is a deficient number, since it is larger than the sum of its proper divisors (15130095).

40961553 is a wasteful number, since it uses less digits than its factorization.

40961553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369063.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 40961553 is about 6400.1213269750. The cubic root of 40961553 is about 344.7139069087.

It can be divided in two parts, 40961 and 553, that added together give a palindrome (41514).

The spelling of 40961553 in words is "forty million, nine hundred sixty-one thousand, five hundred fifty-three".