61889548 has 48 divisors (see below), whose sum is σ = 128128000. Its totient is φ = 26142480.

The previous prime is 61889543. The next prime is 61889551. The reversal of 61889548 is 84598816.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (61889543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108103 + ... + 108673.

Almost surely, 2^61889548 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 61889548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64064000).

61889548 is an abundant number, since it is smaller than the sum of its proper divisors (66238452).

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

61889548 is a wasteful number, since it uses less digits than its factorization.

61889548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 659 counting only the distinct ones).

The product of its digits is 552960, while the sum is 49.

The square root of 61889548 is about 7866.9910385102. The cubic root of 61889548 is about 395.5539905931.

The spelling of 61889548 in words is "sixty-one million, eight hundred eighty-nine thousand, five hundred forty-eight".