61554414 has 64 divisors (see below), whose sum is σ = 137491200. Its totient is φ = 18289152.

The previous prime is 61554413. The next prime is 61554419. The reversal of 61554414 is 41445516.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61554413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141942 + ... + 142374.

It is an arithmetic number, because the mean of its divisors is an integer number (2148300).

Almost surely, 2^61554414 is an apocalyptic number.

61554414 is an abundant number, since it is smaller than the sum of its proper divisors (75936786).

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

61554414 is a wasteful number, since it uses less digits than its factorization.

61554414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529.

The product of its digits is 9600, while the sum is 30.

The square root of 61554414 is about 7845.6621135504. The cubic root of 61554414 is about 394.8387185394.

The spelling of 61554414 in words is "sixty-one million, five hundred fifty-four thousand, four hundred fourteen".