61025280 has 176 divisors, whose sum is σ = 203389920. Its totient is φ = 15597568.

The previous prime is 61025273. The next prime is 61025323. The reversal of 61025280 is 8252016.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 61025280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445372 + ... + 445508.

Almost surely, 2^61025280 is an apocalyptic number.

61025280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61025280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101694960).

61025280 is an abundant number, since it is smaller than the sum of its proper divisors (142364640).

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

61025280 is a wasteful number, since it uses less digits than its factorization.

61025280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 61025280 is about 7811.8678944283. The cubic root of 61025280 is about 393.7040903893.

Adding to 61025280 its reverse (8252016), we get a palindrome (69277296).

The spelling of 61025280 in words is "sixty-one million, twenty-five thousand, two hundred eighty".