61625380 has 36 divisors (see below), whose sum is σ = 131220180. Its totient is φ = 24310528.

The previous prime is 61625363. The next prime is 61625393. The reversal of 61625380 is 8352616.

It can be written as a sum of positive squares in 6 ways, for example, as 16386304 + 45239076 = 4048^2 + 6726^2 .

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 11 ways as a sum of consecutive naturals, for example, 158226 + ... + 158614.

It is an arithmetic number, because the mean of its divisors is an integer number (3645005).

Almost surely, 2^61625380 is an apocalyptic number.

It is an amenable number.

61625380 is an abundant number, since it is smaller than the sum of its proper divisors (69594800).

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

61625380 is a wasteful number, since it uses less digits than its factorization.

61625380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 61625380 is about 7850.1834373472. The cubic root of 61625380 is about 394.9903966046.

Adding to 61625380 its reverse (8352616), we get a palindrome (69977996).

The spelling of 61625380 in words is "sixty-one million, six hundred twenty-five thousand, three hundred eighty".