61026550 has 24 divisors (see below), whose sum is σ = 122242176. Its totient is φ = 22532640.

The previous prime is 61026547. The next prime is 61026571. The reversal of 61026550 is 5562016.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46294 + ... + 47593.

It is an arithmetic number, because the mean of its divisors is an integer number (5093424).

Almost surely, 2^61026550 is an apocalyptic number.

61026550 is an abundant number, since it is smaller than the sum of its proper divisors (61215626).

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

61026550 is a wasteful number, since it uses less digits than its factorization.

61026550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93912 (or 93907 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 61026550 is about 7811.9491805823. The cubic root of 61026550 is about 393.7068215019.

Adding to 61026550 its reverse (5562016), we get a palindrome (66588566).

The spelling of 61026550 in words is "sixty-one million, twenty-six thousand, five hundred fifty".