61223450 has 24 divisors (see below), whose sum is σ = 117552000. Its totient is φ = 23698800.

The previous prime is 61223423. The next prime is 61223467. The reversal of 61223450 is 5432216.

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, 18200 + ... + 21299.

It is an arithmetic number, because the mean of its divisors is an integer number (4898000).

Almost surely, 2^61223450 is an apocalyptic number.

61223450 is a deficient number, since it is larger than the sum of its proper divisors (56328550).

61223450 is a wasteful number, since it uses less digits than its factorization.

61223450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39542 (or 39537 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 61223450 is about 7824.5415201148. The cubic root of 61223450 is about 394.1297939595.

Adding to 61223450 its reverse (5432216), we get a palindrome (66655666).

The spelling of 61223450 in words is "sixty-one million, two hundred twenty-three thousand, four hundred fifty".