61862011 has 4 divisors (see below), whose sum is σ = 63178272. Its totient is φ = 60545752.

The previous prime is 61861979. The next prime is 61862023. The reversal of 61862011 is 11026816.

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 61862011 - 2⁵ = 61861979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61802011) 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, 658060 + ... + 658153.

It is an arithmetic number, because the mean of its divisors is an integer number (15794568).

Almost surely, 2^61862011 is an apocalyptic number.

61862011 is a deficient number, since it is larger than the sum of its proper divisors (1316261).

61862011 is a wasteful number, since it uses less digits than its factorization.

61862011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316260.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 61862011 is about 7865.2406829035. The cubic root of 61862011 is about 395.4953162479.

Adding to 61862011 its reverse (11026816), we get a palindrome (72888827).

The spelling of 61862011 in words is "sixty-one million, eight hundred sixty-two thousand, eleven".