61617442 has 8 divisors (see below), whose sum is σ = 93941532. Its totient is φ = 30303600.

The previous prime is 61617427. The next prime is 61617467. The reversal of 61617442 is 24471616.

It can be written as a sum of positive squares in 2 ways, for example, as 61481281 + 136161 = 7841^2 + 369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 252409 + ... + 252652.

Almost surely, 2^61617442 is an apocalyptic number.

61617442 is a deficient number, since it is larger than the sum of its proper divisors (32324090).

61617442 is a wasteful number, since it uses less digits than its factorization.

61617442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505124.

The product of its digits is 8064, while the sum is 31.

The square root of 61617442 is about 7849.6778277838. The cubic root of 61617442 is about 394.9734362310.

The spelling of 61617442 in words is "sixty-one million, six hundred seventeen thousand, four hundred forty-two".