61676556 has 12 divisors (see below), whose sum is σ = 143911992. Its totient is φ = 20558848.

The previous prime is 61676509. The next prime is 61676567. The reversal of 61676556 is 65567616.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×61676556² = 7607995120042272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2569845 + ... + 2569868.

It is an arithmetic number, because the mean of its divisors is an integer number (11992666).

Almost surely, 2^61676556 is an apocalyptic number.

It is an amenable number.

61676556 is an abundant number, since it is smaller than the sum of its proper divisors (82235436).

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

61676556 is a wasteful number, since it uses less digits than its factorization.

61676556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139720 (or 5139718 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 61676556 is about 7853.4423025830. The cubic root of 61676556 is about 395.0997045750.

The spelling of 61676556 in words is "sixty-one million, six hundred seventy-six thousand, five hundred fifty-six".