61977050 has 24 divisors (see below), whose sum is σ = 121346400. Its totient is φ = 23485680.

The previous prime is 61977049. The next prime is 61977059. The reversal of 61977050 is 5077916.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61977050.

It is not an unprimeable number, because it can be changed into a prime (61977059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31670 + ... + 33569.

It is an arithmetic number, because the mean of its divisors is an integer number (5056100).

Almost surely, 2^61977050 is an apocalyptic number.

61977050 is a deficient number, since it is larger than the sum of its proper divisors (59369350).

61977050 is a wasteful number, since it uses less digits than its factorization.

61977050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65270 (or 65265 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 61977050 is about 7872.5504126681. The cubic root of 61977050 is about 395.7403196657.

The spelling of 61977050 in words is "sixty-one million, nine hundred seventy-seven thousand, fifty".