61501472 has 12 divisors (see below), whose sum is σ = 121081086. Its totient is φ = 30750720.

The previous prime is 61501469. The next prime is 61501501. The reversal of 61501472 is 27410516.

It can be written as a sum of positive squares in only one way, i.e., 45212176 + 16289296 = 6724^2 + 4036^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 960929 + ... + 960992.

Almost surely, 2^61501472 is an apocalyptic number.

It is an amenable number.

61501472 is a deficient number, since it is larger than the sum of its proper divisors (59579614).

61501472 is a wasteful number, since it uses less digits than its factorization.

61501472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921931 (or 1921923 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 61501472 is about 7842.2874214096. The cubic root of 61501472 is about 394.7254878443.

Adding to 61501472 its reverse (27410516), we get a palindrome (88911988).

The spelling of 61501472 in words is "sixty-one million, five hundred one thousand, four hundred seventy-two".