61323558 has 8 divisors (see below), whose sum is σ = 122647128. Its totient is φ = 20441184.

The previous prime is 61323523. The next prime is 61323593. The reversal of 61323558 is 85532316.

It is an interprime number because it is at equal distance from previous prime (61323523) and next prime (61323593).

It is a sphenic number, since it is the product of 3 distinct primes.

61323558 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5110291 + ... + 5110302.

It is an arithmetic number, because the mean of its divisors is an integer number (15330891).

Almost surely, 2^61323558 is an apocalyptic number.

61323558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61323558 is a wasteful number, since it uses less digits than its factorization.

61323558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220598.

The product of its digits is 21600, while the sum is 33.

The square root of 61323558 is about 7830.9359593857. The cubic root of 61323558 is about 394.3444941548.

The spelling of 61323558 in words is "sixty-one million, three hundred twenty-three thousand, five hundred fifty-eight".