61672450 has 24 divisors (see below), whose sum is σ = 131098752. Its totient is φ = 21144720.

The previous prime is 61672439. The next prime is 61672459. The reversal of 61672450 is 5427616.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61672459) 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, 87754 + ... + 88453.

It is an arithmetic number, because the mean of its divisors is an integer number (5462448).

Almost surely, 2^61672450 is an apocalyptic number.

61672450 is an abundant number, since it is smaller than the sum of its proper divisors (69426302).

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

61672450 is a wasteful number, since it uses less digits than its factorization.

61672450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176226 (or 176221 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 61672450 is about 7853.1808842023. The cubic root of 61672450 is about 395.0909367087.

The spelling of 61672450 in words is "sixty-one million, six hundred seventy-two thousand, four hundred fifty".