61254550 has 24 divisors (see below), whose sum is σ = 130210416. Its totient is φ = 21001440.

The previous prime is 61254547. The next prime is 61254559. The reversal of 61254550 is 5545216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61254559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87157 + ... + 87856.

It is an arithmetic number, because the mean of its divisors is an integer number (5425434).

Almost surely, 2^61254550 is an apocalyptic number.

61254550 is an abundant number, since it is smaller than the sum of its proper divisors (68955866).

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

61254550 is a wasteful number, since it uses less digits than its factorization.

61254550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175032 (or 175027 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 61254550 is about 7826.5286046880. The cubic root of 61254550 is about 394.1965187285.

Adding to 61254550 its reverse (5545216), we get a palindrome (66799766).

The spelling of 61254550 in words is "sixty-one million, two hundred fifty-four thousand, five hundred fifty".