61434553 has 4 divisors (see below), whose sum is σ = 61470288. Its totient is φ = 61398820.

The previous prime is 61434539. The next prime is 61434601. The reversal of 61434553 is 35543416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61434553 - 2²⁵ = 27880121 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61134553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15151 + ... + 18772.

It is an arithmetic number, because the mean of its divisors is an integer number (15367572).

Almost surely, 2^61434553 is an apocalyptic number.

It is an amenable number.

61434553 is a deficient number, since it is larger than the sum of its proper divisors (35735).

61434553 is a wasteful number, since it uses less digits than its factorization.

61434553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35734.

The product of its digits is 21600, while the sum is 31.

The square root of 61434553 is about 7838.0197116364. The cubic root of 61434553 is about 394.5822705611.

Adding to 61434553 its reverse (35543416), we get a palindrome (96977969).

The spelling of 61434553 in words is "sixty-one million, four hundred thirty-four thousand, five hundred fifty-three".