61015296 has 72 divisors (see below), whose sum is σ = 165564000. Its totient is φ = 19941376.

The previous prime is 61015291. The next prime is 61015303. The reversal of 61015296 is 69251016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61015291) 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, 39955 + ... + 41453.

It is an arithmetic number, because the mean of its divisors is an integer number (2299500).

Almost surely, 2^61015296 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 61015296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82782000).

61015296 is an abundant number, since it is smaller than the sum of its proper divisors (104548704).

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

61015296 is a wasteful number, since it uses less digits than its factorization.

61015296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 61015296 is about 7811.2288405858. The cubic root of 61015296 is about 393.6826186538.

The spelling of 61015296 in words is "sixty-one million, fifteen thousand, two hundred ninety-six".