61955198 has 16 divisors (see below), whose sum is σ = 95147136. Its totient is φ = 30245280.

The previous prime is 61955171. The next prime is 61955203. The reversal of 61955198 is 89155916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22328 + ... + 24948.

It is an arithmetic number, because the mean of its divisors is an integer number (5946696).

Almost surely, 2^61955198 is an apocalyptic number.

61955198 is a deficient number, since it is larger than the sum of its proper divisors (33191938).

61955198 is a wasteful number, since it uses less digits than its factorization.

61955198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899.

The product of its digits is 97200, while the sum is 44.

The square root of 61955198 is about 7871.1624300354. The cubic root of 61955198 is about 395.6938038774.

The spelling of 61955198 in words is "sixty-one million, nine hundred fifty-five thousand, one hundred ninety-eight".