61953055 has 4 divisors (see below), whose sum is σ = 74343672. Its totient is φ = 49562440.

The previous prime is 61953037. The next prime is 61953061. The reversal of 61953055 is 55035916.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61953055 - 2¹⁷ = 61821983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61953055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6195301 + ... + 6195310.

It is an arithmetic number, because the mean of its divisors is an integer number (18585918).

Almost surely, 2^61953055 is an apocalyptic number.

61953055 is a deficient number, since it is larger than the sum of its proper divisors (12390617).

61953055 is a wasteful number, since it uses less digits than its factorization.

61953055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12390616.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 61953055 is about 7871.0262990286. The cubic root of 61953055 is about 395.6892415397.

The spelling of 61953055 in words is "sixty-one million, nine hundred fifty-three thousand, fifty-five".