61222544 has 10 divisors (see below), whose sum is σ = 118618710. Its totient is φ = 30611264.

The previous prime is 61222537. The next prime is 61222547. The reversal of 61222544 is 44522216.

It can be written as a sum of positive squares in only one way, i.e., 48832144 + 12390400 = 6988^2 + 3520^2 .

It is not an unprimeable number, because it can be changed into a prime (61222547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1913189 + ... + 1913220.

It is an arithmetic number, because the mean of its divisors is an integer number (11861871).

Almost surely, 2^61222544 is an apocalyptic number.

It is an amenable number.

61222544 is a deficient number, since it is larger than the sum of its proper divisors (57396166).

61222544 is a wasteful number, since it uses less digits than its factorization.

61222544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826417 (or 3826411 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 61222544 is about 7824.4836251346. The cubic root of 61222544 is about 394.1278498060.

The spelling of 61222544 in words is "sixty-one million, two hundred twenty-two thousand, five hundred forty-four".