61450550 has 24 divisors (see below), whose sum is σ = 130627056. Its totient is φ = 21068640.

The previous prime is 61450537. The next prime is 61450553. The reversal of 61450550 is 5505416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61450553) 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, 87437 + ... + 88136.

It is an arithmetic number, because the mean of its divisors is an integer number (5442794).

Almost surely, 2^61450550 is an apocalyptic number.

61450550 is an abundant number, since it is smaller than the sum of its proper divisors (69176506).

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

61450550 is a wasteful number, since it uses less digits than its factorization.

61450550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175592 (or 175587 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 61450550 is about 7839.0401198106. The cubic root of 61450550 is about 394.6165161362.

Adding to 61450550 its reverse (5505416), we get a palindrome (66955966).

The spelling of 61450550 in words is "sixty-one million, four hundred fifty thousand, five hundred fifty".