60531861 has 16 divisors (see below), whose sum is σ = 87094784. Its totient is φ = 37174464.

The previous prime is 60531857. The next prime is 60531869. The reversal of 60531861 is 16813506.

It is not a de Polignac number, because 60531861 - 2² = 60531857 is a prime.

It is a super-2 number, since 2×60531861² = 7328212392246642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60531869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22395 + ... + 24951.

It is an arithmetic number, because the mean of its divisors is an integer number (5443424).

Almost surely, 2^60531861 is an apocalyptic number.

It is an amenable number.

60531861 is a deficient number, since it is larger than the sum of its proper divisors (26562923).

60531861 is a wasteful number, since it uses less digits than its factorization.

60531861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 60531861 is about 7780.2224261264. Note that the first 3 decimals coincide. The cubic root of 60531861 is about 392.6401214452.

The spelling of 60531861 in words is "sixty million, five hundred thirty-one thousand, eight hundred sixty-one".