61830552 has 160 divisors (see below), whose sum is σ = 191588400. Its totient is φ = 16595712.

The previous prime is 61830551. The next prime is 61830553. The reversal of 61830552 is 25503816.

It is an interprime number because it is at equal distance from previous prime (61830551) and next prime (61830553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61830551) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1671078 + ... + 1671114.

Almost surely, 2^61830552 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 61830552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95794200).

61830552 is an abundant number, since it is smaller than the sum of its proper divisors (129757848).

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

61830552 is a wasteful number, since it uses less digits than its factorization.

61830552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 61830552 is about 7863.2405533597. The cubic root of 61830552 is about 395.4282638055.

The spelling of 61830552 in words is "sixty-one million, eight hundred thirty thousand, five hundred fifty-two".