61411556 has 12 divisors (see below), whose sum is σ = 107525292. Its totient is φ = 30690048.

The previous prime is 61411547. The next prime is 61411561. The reversal of 61411556 is 65511416.

It can be written as a sum of positive squares in 2 ways, for example, as 18062500 + 43349056 = 4250^2 + 6584^2 .

It is a super-2 number, since 2×61411556² = 7542758420682272, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 12236 + ... + 16508.

It is an arithmetic number, because the mean of its divisors is an integer number (8960441).

Almost surely, 2^61411556 is an apocalyptic number.

It is an amenable number.

61411556 is a deficient number, since it is larger than the sum of its proper divisors (46113736).

61411556 is a wasteful number, since it uses less digits than its factorization.

61411556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7870 (or 7868 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 61411556 is about 7836.5525583639. The cubic root of 61411556 is about 394.5330293197.

The spelling of 61411556 in words is "sixty-one million, four hundred eleven thousand, five hundred fifty-six".