61050000 has 240 divisors, whose sum is σ = 220860864. Its totient is φ = 14400000.

The previous prime is 61049999. The next prime is 61050001. The reversal of 61050000 is 5016.

It is an interprime number because it is at equal distance from previous prime (61049999) and next prime (61050001).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (61050001) 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 47 ways as a sum of consecutive naturals, for example, 1649982 + ... + 1650018.

Almost surely, 2^61050000 is an apocalyptic number.

61050000 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 61050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110430432).

61050000 is an abundant number, since it is smaller than the sum of its proper divisors (159810864).

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

61050000 is a wasteful number, since it uses less digits than its factorization.

61050000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 61050000 is about 7813.4499422470. The cubic root of 61050000 is about 393.7572435049.

Adding to 61050000 its reverse (5016), we get a palindrome (61055016).

The spelling of 61050000 in words is "sixty-one million, fifty thousand".