61908552 has 24 divisors (see below), whose sum is σ = 167669190. Its totient is φ = 20636160.

The previous prime is 61908499. The next prime is 61908589. The reversal of 61908552 is 25580916.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61873956 + 34596 = 7866^2 + 186^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 429849 + ... + 429992.

Almost surely, 2^61908552 is an apocalyptic number.

It is an amenable number.

61908552 is an abundant number, since it is smaller than the sum of its proper divisors (105760638).

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

61908552 is a wasteful number, since it uses less digits than its factorization.

61908552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859853 (or 859846 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 61908552 is about 7868.1987773569. The cubic root of 61908552 is about 395.5944731355.

The spelling of 61908552 in words is "sixty-one million, nine hundred eight thousand, five hundred fifty-two".