61000544 has 24 divisors (see below), whose sum is σ = 131013288. Its totient is φ = 27727360.

The previous prime is 61000523. The next prime is 61000553. The reversal of 61000544 is 44500016.

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, 86297 + ... + 87000.

It is an arithmetic number, because the mean of its divisors is an integer number (5458887).

Almost surely, 2^61000544 is an apocalyptic number.

It is an amenable number.

61000544 is an abundant number, since it is smaller than the sum of its proper divisors (70012744).

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

61000544 is a wasteful number, since it uses less digits than its factorization.

61000544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173318 (or 173310 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 61000544 is about 7810.2845018604. The cubic root of 61000544 is about 393.6508885004.

The spelling of 61000544 in words is "sixty-one million, five hundred forty-four", and thus it is an aban number.