61005054 has 32 divisors (see below), whose sum is σ = 134219520. Its totient is φ = 18483960.

The previous prime is 61005037. The next prime is 61005059. The reversal of 61005054 is 45050016.

It is a happy number.

It is a super-2 number, since 2×61005054² = 7443233227085832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61005054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61005059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4167 + ... + 11805.

It is an arithmetic number, because the mean of its divisors is an integer number (4194360).

Almost surely, 2^61005054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61005054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67109760).

61005054 is an abundant number, since it is smaller than the sum of its proper divisors (73214466).

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

61005054 is a wasteful number, since it uses less digits than its factorization.

61005054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677 (or 7655 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 61005054 is about 7810.5732184008. The cubic root of 61005054 is about 393.6605896257.

The spelling of 61005054 in words is "sixty-one million, five thousand, fifty-four".