61318950 has 96 divisors (see below), whose sum is σ = 189630720. Its totient is φ = 12739200.

The previous prime is 61318919. The next prime is 61318967. The reversal of 61318950 is 5981316.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8896 + ... + 14204.

It is an arithmetic number, because the mean of its divisors is an integer number (1975320).

Almost surely, 2^61318950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61318950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94815360).

61318950 is an abundant number, since it is smaller than the sum of its proper divisors (128311770).

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

61318950 is a wasteful number, since it uses less digits than its factorization.

61318950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342 (or 5337 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 61318950 is about 7830.6417361542. The cubic root of 61318950 is about 394.3346165753.

The spelling of 61318950 in words is "sixty-one million, three hundred eighteen thousand, nine hundred fifty".