61865232 has 80 divisors (see below), whose sum is σ = 187779648. Its totient is φ = 17303040.

The previous prime is 61865231. The next prime is 61865249. The reversal of 61865232 is 23256816.

It is a super-3 number, since 3×61865232³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 61865193 and 61865202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61865231) 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, 2358 + ... + 11370.

Almost surely, 2^61865232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61865232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93889824).

61865232 is an abundant number, since it is smaller than the sum of its proper divisors (125914416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61865232 is a wasteful number, since it uses less digits than its factorization.

61865232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9048 (or 9042 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 61865232 is about 7865.4454419314. The cubic root of 61865232 is about 395.5021802790.

The spelling of 61865232 in words is "sixty-one million, eight hundred sixty-five thousand, two hundred thirty-two".