61098576 has 160 divisors (see below), whose sum is σ = 200749056. Its totient is φ = 15552000.

The previous prime is 61098529. The next prime is 61098577. The reversal of 61098576 is 67589016.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61098577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225321 + ... + 225591.

Almost surely, 2^61098576 is an apocalyptic number.

61098576 is a gapful number since it is divisible by the number (66) 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 61098576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100374528).

61098576 is an abundant number, since it is smaller than the sum of its proper divisors (139650480).

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

61098576 is a wasteful number, since it uses less digits than its factorization.

61098576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 61098576 is about 7816.5578101873. The cubic root of 61098576 is about 393.8616501721.

The spelling of 61098576 in words is "sixty-one million, ninety-eight thousand, five hundred seventy-six".