61153620 has 48 divisors (see below), whose sum is σ = 186798528. Its totient is φ = 14824960.

The previous prime is 61153613. The next prime is 61153621. The reversal of 61153620 is 2635116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61153621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45669 + ... + 46988.

It is an arithmetic number, because the mean of its divisors is an integer number (3891636).

Almost surely, 2^61153620 is an apocalyptic number.

61153620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61153620 is an abundant number, since it is smaller than the sum of its proper divisors (125644908).

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

61153620 is a wasteful number, since it uses less digits than its factorization.

61153620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92680 (or 92678 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 61153620 is about 7820.0780047260. The cubic root of 61153620 is about 393.9798919539.

Adding to 61153620 its reverse (2635116), we get a palindrome (63788736).

The spelling of 61153620 in words is "sixty-one million, one hundred fifty-three thousand, six hundred twenty".