61554225333 has 16 divisors (see below), whose sum is σ = 82704317696. Its totient is φ = 40721123520.

The previous prime is 61554225323. The next prime is 61554225347. The reversal of 61554225333 is 33352245516.

It is not a de Polignac number, because 61554225333 - 2⁹ = 61554224821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61554225291 and 61554225300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61554225323) 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, 128991 + ... + 373827.

It is an arithmetic number, because the mean of its divisors is an integer number (5169019856).

Almost surely, 2^61554225333 is an apocalyptic number.

It is an amenable number.

61554225333 is a deficient number, since it is larger than the sum of its proper divisors (21150092363).

61554225333 is a wasteful number, since it uses less digits than its factorization.

61554225333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245484.

The product of its digits is 324000, while the sum is 39.

The spelling of 61554225333 in words is "sixty-one billion, five hundred fifty-four million, two hundred twenty-five thousand, three hundred thirty-three".