61026015550 has 24 divisors (see below), whose sum is σ = 113519966400. Its totient is φ = 24407916480.

The previous prime is 61026015541. The next prime is 61026015577. The reversal of 61026015550 is 5551062016.

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, 479571 + ... + 593329.

It is an arithmetic number, because the mean of its divisors is an integer number (4729998600).

Almost surely, 2^61026015550 is an apocalyptic number.

61026015550 is a deficient number, since it is larger than the sum of its proper divisors (52493950850).

61026015550 is a wasteful number, since it uses less digits than its factorization.

61026015550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124500 (or 124495 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 61026015550 its reverse (5551062016), we get a palindrome (66577077566).

The spelling of 61026015550 in words is "sixty-one billion, twenty-six million, fifteen thousand, five hundred fifty".