61002544 has 40 divisors (see below), whose sum is σ = 126241920. Its totient is φ = 28492800.

The previous prime is 61002541. The next prime is 61002553. The reversal of 61002544 is 44520016.

It is not an unprimeable number, because it can be changed into a prime (61002541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12264 + ... + 16504.

It is an arithmetic number, because the mean of its divisors is an integer number (3156048).

Almost surely, 2^61002544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61002544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63120960).

61002544 is an abundant number, since it is smaller than the sum of its proper divisors (65239376).

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

61002544 is a wasteful number, since it uses less digits than its factorization.

61002544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309 (or 4303 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 61002544 is about 7810.4125371199. The cubic root of 61002544 is about 393.6551906106.

The spelling of 61002544 in words is "sixty-one million, two thousand, five hundred forty-four".