61255444 has 12 divisors (see below), whose sum is σ = 107448768. Its totient is φ = 30555800.

The previous prime is 61255427. The next prime is 61255451. The reversal of 61255444 is 44455216.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16042 + ... + 19489.

It is an arithmetic number, because the mean of its divisors is an integer number (8954064).

Almost surely, 2^61255444 is an apocalyptic number.

It is an amenable number.

61255444 is a deficient number, since it is larger than the sum of its proper divisors (46193324).

61255444 is a wasteful number, since it uses less digits than its factorization.

61255444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35966 (or 35964 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 61255444 is about 7826.5857179232. The cubic root of 61255444 is about 394.1984364635.

The spelling of 61255444 in words is "sixty-one million, two hundred fifty-five thousand, four hundred forty-four".