61455654 has 48 divisors (see below), whose sum is σ = 144288144. Its totient is φ = 18792000.

The previous prime is 61455623. The next prime is 61455677. The reversal of 61455654 is 45655416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41629 + ... + 43079.

It is an arithmetic number, because the mean of its divisors is an integer number (3006003).

Almost surely, 2^61455654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61455654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72144072).

61455654 is an abundant number, since it is smaller than the sum of its proper divisors (82832490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61455654 is a wasteful number, since it uses less digits than its factorization.

61455654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653 (or 1650 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 61455654 is about 7839.3656631133. The cubic root of 61455654 is about 394.6274412727.

The spelling of 61455654 in words is "sixty-one million, four hundred fifty-five thousand, six hundred fifty-four".