61057248 has 96 divisors (see below), whose sum is σ = 187520256. Its totient is φ = 17031168.

The previous prime is 61057247. The next prime is 61057261. The reversal of 61057248 is 84275016.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61057247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27840 + ... + 29952.

It is an arithmetic number, because the mean of its divisors is an integer number (1953336).

Almost surely, 2^61057248 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 61057248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93760128).

61057248 is an abundant number, since it is smaller than the sum of its proper divisors (126463008).

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

61057248 is a wasteful number, since it uses less digits than its factorization.

61057248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176 (or 2168 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 61057248 is about 7813.9137440850. The cubic root of 61057248 is about 393.7728254846.

The spelling of 61057248 in words is "sixty-one million, fifty-seven thousand, two hundred forty-eight".