61722514 has 16 divisors (see below), whose sum is σ = 106860096. Its totient is φ = 26190000.

The previous prime is 61722499. The next prime is 61722517. The reversal of 61722514 is 41522716.

It is not an unprimeable number, because it can be changed into a prime (61722517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20412 + ... + 23239.

It is an arithmetic number, because the mean of its divisors is an integer number (6678756).

Almost surely, 2^61722514 is an apocalyptic number.

61722514 is a deficient number, since it is larger than the sum of its proper divisors (45137582).

61722514 is a wasteful number, since it uses less digits than its factorization.

61722514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43761.

The product of its digits is 3360, while the sum is 28.

The square root of 61722514 is about 7856.3677357924. The cubic root of 61722514 is about 395.1978157815.

The spelling of 61722514 in words is "sixty-one million, seven hundred twenty-two thousand, five hundred fourteen".