61019059 has 4 divisors (see below), whose sum is σ = 62170416. Its totient is φ = 59867704.

The previous prime is 61019009. The next prime is 61019071. The reversal of 61019059 is 95091016.

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

It is a cyclic number.

It is not a de Polignac number, because 61019059 - 2¹⁷ = 60887987 is a prime.

It is a super-2 number, since 2×61019059² = 7446651122490962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61019059.

It is not an unprimeable number, because it can be changed into a prime (61019009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575599 + ... + 575704.

It is an arithmetic number, because the mean of its divisors is an integer number (15542604).

Almost surely, 2^61019059 is an apocalyptic number.

61019059 is a deficient number, since it is larger than the sum of its proper divisors (1151357).

61019059 is a wasteful number, since it uses less digits than its factorization.

61019059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151356.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 61019059 is about 7811.4697080639. The cubic root of 61019059 is about 393.6907116913.

The spelling of 61019059 in words is "sixty-one million, nineteen thousand, fifty-nine".