61954499 has 4 divisors (see below), whose sum is σ = 62021280. Its totient is φ = 61887720.

The previous prime is 61954489. The next prime is 61954513. The reversal of 61954499 is 99445916.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61954499 - 2¹⁶ = 61888963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61954489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31979 + ... + 33860.

It is an arithmetic number, because the mean of its divisors is an integer number (15505320).

Almost surely, 2^61954499 is an apocalyptic number.

61954499 is a deficient number, since it is larger than the sum of its proper divisors (66781).

61954499 is an equidigital number, since it uses as much as digits as its factorization.

61954499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66780.

The product of its digits is 349920, while the sum is 47.

The square root of 61954499 is about 7871.1180273199. The cubic root of 61954499 is about 395.6923157536.

The spelling of 61954499 in words is "sixty-one million, nine hundred fifty-four thousand, four hundred ninety-nine".