61532746925 has 48 divisors (see below), whose sum is σ = 83865913488. Its totient is φ = 44504678400.

The previous prime is 61532746903. The next prime is 61532746943. The reversal of 61532746925 is 52964723516.

It can be written as a sum of positive squares in 24 ways, for example, as 46956289636 + 14576457289 = 216694^2 + 120733^2 .

It is not a de Polignac number, because 61532746925 - 2⁸ = 61532746669 is a prime.

It is a Duffinian number.

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 in 47 ways as a sum of consecutive naturals, for example, 11038439 + ... + 11044011.

It is an arithmetic number, because the mean of its divisors is an integer number (1747206531).

Almost surely, 2^61532746925 is an apocalyptic number.

61532746925 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61532746925 is a deficient number, since it is larger than the sum of its proper divisors (22333166563).

61532746925 is a wasteful number, since it uses less digits than its factorization.

61532746925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6290 (or 6285 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 50.

The spelling of 61532746925 in words is "sixty-one billion, five hundred thirty-two million, seven hundred forty-six thousand, nine hundred twenty-five".