61425120 has 96 divisors (see below), whose sum is σ = 196251552. Its totient is φ = 16146432.

The previous prime is 61425071. The next prime is 61425121. The reversal of 61425120 is 2152416.

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 (61425121) 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, 34164 + ... + 35916.

It is an arithmetic number, because the mean of its divisors is an integer number (2044287).

Almost surely, 2^61425120 is an apocalyptic number.

61425120 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 61425120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98125776).

61425120 is an abundant number, since it is smaller than the sum of its proper divisors (134826432).

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

61425120 is a wasteful number, since it uses less digits than its factorization.

61425120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 61425120 is about 7837.4179421542. The cubic root of 61425120 is about 394.5620740816.

Adding to 61425120 its reverse (2152416), we get a palindrome (63577536).

The spelling of 61425120 in words is "sixty-one million, four hundred twenty-five thousand, one hundred twenty".