61040553 has 16 divisors (see below), whose sum is σ = 93351936. Its totient is φ = 34753680.

The previous prime is 61040543. The next prime is 61040587. The reversal of 61040553 is 35504016.

It is not a de Polignac number, because 61040553 - 2⁴ = 61040537 is a prime.

It is a super-2 number, since 2×61040553² = 7451898221091618, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61040533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 808 + ... + 11078.

It is an arithmetic number, because the mean of its divisors is an integer number (5834496).

Almost surely, 2^61040553 is an apocalyptic number.

It is an amenable number.

61040553 is a deficient number, since it is larger than the sum of its proper divisors (32311383).

61040553 is a wasteful number, since it uses less digits than its factorization.

61040553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10564.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 61040553 is about 7812.8453843654. The cubic root of 61040553 is about 393.7369321942.

Adding to 61040553 its reverse (35504016), we get a palindrome (96544569).

The spelling of 61040553 in words is "sixty-one million, forty thousand, five hundred fifty-three".