61328502 has 20 divisors (see below), whose sum is σ = 137421636. Its totient is φ = 20442780.

The previous prime is 61328489. The next prime is 61328507. The reversal of 61328502 is 20582316.

It is a super-2 number, since 2×61328502² = 7522370315128008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61328507) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 189124 + ... + 189447.

Almost surely, 2^61328502 is an apocalyptic number.

61328502 is an abundant number, since it is smaller than the sum of its proper divisors (76093134).

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

61328502 is a wasteful number, since it uses less digits than its factorization.

61328502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378585 (or 378576 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 61328502 is about 7831.2516241020. The cubic root of 61328502 is about 394.3550914241.

The spelling of 61328502 in words is "sixty-one million, three hundred twenty-eight thousand, five hundred two".