61354553 has 16 divisors (see below), whose sum is σ = 70358400. Its totient is φ = 53032320.

The previous prime is 61354543. The next prime is 61354561. The reversal of 61354553 is 35545316.

It is a cyclic number.

It is not a de Polignac number, because 61354553 - 2¹⁰ = 61353529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61354543) 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, 20588 + ... + 23378.

It is an arithmetic number, because the mean of its divisors is an integer number (4397400).

Almost surely, 2^61354553 is an apocalyptic number.

It is an amenable number.

61354553 is a deficient number, since it is larger than the sum of its proper divisors (9003847).

61354553 is a wasteful number, since it uses less digits than its factorization.

61354553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912.

The product of its digits is 27000, while the sum is 32.

The square root of 61354553 is about 7832.9147193111. The cubic root of 61354553 is about 394.4109213121.

Adding to 61354553 its reverse (35545316), we get a palindrome (96899869).

The spelling of 61354553 in words is "sixty-one million, three hundred fifty-four thousand, five hundred fifty-three".