61865026 has 16 divisors (see below), whose sum is σ = 100834560. Its totient is φ = 28358640.

The previous prime is 61865017. The next prime is 61865029. The reversal of 61865026 is 62056816.

It is a junction number, because it is equal to n+sod(n) for n = 61864982 and 61865000.

It is not an unprimeable number, because it can be changed into a prime (61865029) 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, 25081 + ... + 27436.

It is an arithmetic number, because the mean of its divisors is an integer number (6302160).

Almost surely, 2^61865026 is an apocalyptic number.

61865026 is a deficient number, since it is larger than the sum of its proper divisors (38969534).

61865026 is a wasteful number, since it uses less digits than its factorization.

61865026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52569.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 61865026 is about 7865.4323466673. The cubic root of 61865026 is about 395.5017412950.

The spelling of 61865026 in words is "sixty-one million, eight hundred sixty-five thousand, twenty-six".