61240550 has 48 divisors (see below), whose sum is σ = 133726560. Its totient is φ = 20424960.

The previous prime is 61240541. The next prime is 61240561. The reversal of 61240550 is 5504216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10586 + ... + 15314.

It is an arithmetic number, because the mean of its divisors is an integer number (2785970).

Almost surely, 2^61240550 is an apocalyptic number.

61240550 is an abundant number, since it is smaller than the sum of its proper divisors (72486010).

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

61240550 is a wasteful number, since it uses less digits than its factorization.

61240550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785 (or 4780 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 61240550 is about 7825.6341596065. The cubic root of 61240550 is about 394.1664846507.

Adding to 61240550 its reverse (5504216), we get a palindrome (66744766).

The spelling of 61240550 in words is "sixty-one million, two hundred forty thousand, five hundred fifty".