61525505752 has 8 divisors (see below), whose sum is σ = 115360323300. Its totient is φ = 30762752872.

The previous prime is 61525505707. The next prime is 61525505807. The reversal of 61525505752 is 25750552516.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 61525505699 and 61525505708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3845344102 + ... + 3845344117.

Almost surely, 2^61525505752 is an apocalyptic number.

It is an amenable number.

61525505752 is a deficient number, since it is larger than the sum of its proper divisors (53834817548).

61525505752 is a wasteful number, since it uses less digits than its factorization.

61525505752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7690688225 (or 7690688221 counting only the distinct ones).

The product of its (nonzero) digits is 525000, while the sum is 43.

The spelling of 61525505752 in words is "sixty-one billion, five hundred twenty-five million, five hundred five thousand, seven hundred fifty-two".