61244554 has 16 divisors (see below), whose sum is σ = 105250176. Its totient is φ = 26182800.

The previous prime is 61244551. The next prime is 61244567. The reversal of 61244554 is 45544216.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61244551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699 + ... + 11089.

It is an arithmetic number, because the mean of its divisors is an integer number (6578136).

Almost surely, 2^61244554 is an apocalyptic number.

61244554 is a deficient number, since it is larger than the sum of its proper divisors (44005622).

61244554 is a wasteful number, since it uses less digits than its factorization.

61244554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10821.

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

The square root of 61244554 is about 7825.8899813376. The cubic root of 61244554 is about 394.1750748643.

The spelling of 61244554 in words is "sixty-one million, two hundred forty-four thousand, five hundred fifty-four".