61653448 has 8 divisors (see below), whose sum is σ = 115600230. Its totient is φ = 30826720.

The previous prime is 61653439. The next prime is 61653457. The reversal of 61653448 is 84435616.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61653439) and next prime (61653457).

It can be written as a sum of positive squares in only one way, i.e., 40475044 + 21178404 = 6362^2 + 4602^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×61653448² = 7602295300577408, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3853333 + ... + 3853348.

Almost surely, 2^61653448 is an apocalyptic number.

It is an amenable number.

61653448 is a deficient number, since it is larger than the sum of its proper divisors (53946782).

61653448 is a wasteful number, since it uses less digits than its factorization.

61653448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7706687 (or 7706683 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 61653448 is about 7851.9709627583. The cubic root of 61653448 is about 395.0503551677.

The spelling of 61653448 in words is "sixty-one million, six hundred fifty-three thousand, four hundred forty-eight".