61919552 has 14 divisors (see below), whose sum is σ = 122871738. Its totient is φ = 30959744.

The previous prime is 61919503. The next prime is 61919563. The reversal of 61919552 is 25591916.

It can be written as a sum of positive squares in only one way, i.e., 58736896 + 3182656 = 7664^2 + 1784^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483683 + ... + 483810.

Almost surely, 2^61919552 is an apocalyptic number.

It is an amenable number.

61919552 is a deficient number, since it is larger than the sum of its proper divisors (60952186).

61919552 is an equidigital number, since it uses as much as digits as its factorization.

61919552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967505 (or 967495 counting only the distinct ones).

The product of its digits is 24300, while the sum is 38.

The square root of 61919552 is about 7868.8977627111. The cubic root of 61919552 is about 395.6179016784.

The spelling of 61919552 in words is "sixty-one million, nine hundred nineteen thousand, five hundred fifty-two".