61563622 has 4 divisors (see below), whose sum is σ = 92345436. Its totient is φ = 30781810.

The previous prime is 61563611. The next prime is 61563653. The reversal of 61563622 is 22636516.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15390904 + ... + 15390907.

It is an arithmetic number, because the mean of its divisors is an integer number (23086359).

Almost surely, 2^61563622 is an apocalyptic number.

61563622 is a deficient number, since it is larger than the sum of its proper divisors (30781814).

61563622 is a wasteful number, since it uses less digits than its factorization.

61563622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30781813.

The product of its digits is 12960, while the sum is 31.

The square root of 61563622 is about 7846.2489126971. The cubic root of 61563622 is about 394.8584056932.

The spelling of 61563622 in words is "sixty-one million, five hundred sixty-three thousand, six hundred twenty-two".