61100425 has 6 divisors (see below), whose sum is σ = 75764558. Its totient is φ = 48880320.

The previous prime is 61100407. The next prime is 61100437. The reversal of 61100425 is 52400116.

It can be written as a sum of positive squares in 3 ways, for example, as 14969161 + 46131264 = 3869^2 + 6792^2 .

It is not a de Polignac number, because 61100425 - 2⁵ = 61100393 is a prime.

It is a Duffinian number.

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 5 ways as a sum of consecutive naturals, for example, 1221984 + ... + 1222033.

Almost surely, 2^61100425 is an apocalyptic number.

It is an amenable number.

61100425 is a deficient number, since it is larger than the sum of its proper divisors (14664133).

61100425 is a wasteful number, since it uses less digits than its factorization.

61100425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444027 (or 2444022 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 61100425 is about 7816.6760838607. The cubic root of 61100425 is about 393.8656232208.

The spelling of 61100425 in words is "sixty-one million, one hundred thousand, four hundred twenty-five".