61528030 has 8 divisors (see below), whose sum is σ = 110750472. Its totient is φ = 24611208.

The previous prime is 61528009. The next prime is 61528037. The reversal of 61528030 is 3082516.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 61527986 and 61528004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61528037) 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, 3076392 + ... + 3076411.

It is an arithmetic number, because the mean of its divisors is an integer number (13843809).

Almost surely, 2^61528030 is an apocalyptic number.

61528030 is a deficient number, since it is larger than the sum of its proper divisors (49222442).

61528030 is a wasteful number, since it uses less digits than its factorization.

61528030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152810.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 61528030 is about 7843.9804946213. The cubic root of 61528030 is about 394.7822973838.

The spelling of 61528030 in words is "sixty-one million, five hundred twenty-eight thousand, thirty".