61696550 has 24 divisors (see below), whose sum is σ = 115009752. Its totient is φ = 24624000.

The previous prime is 61696517. The next prime is 61696561. The reversal of 61696550 is 5569616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27470 + ... + 29630.

It is an arithmetic number, because the mean of its divisors is an integer number (4792073).

Almost surely, 2^61696550 is an apocalyptic number.

61696550 is a deficient number, since it is larger than the sum of its proper divisors (53313202).

61696550 is a wasteful number, since it uses less digits than its factorization.

61696550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744 (or 2739 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 61696550 is about 7854.7151444212. The cubic root of 61696550 is about 395.1423937832.

The spelling of 61696550 in words is "sixty-one million, six hundred ninety-six thousand, five hundred fifty".