61523323 has 4 divisors (see below), whose sum is σ = 65142360. Its totient is φ = 57904288.

The previous prime is 61523309. The next prime is 61523347. The reversal of 61523323 is 32332516.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61523323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61523393) 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, 1809493 + ... + 1809526.

It is an arithmetic number, because the mean of its divisors is an integer number (16285590).

Almost surely, 2^61523323 is an apocalyptic number.

61523323 is a deficient number, since it is larger than the sum of its proper divisors (3619037).

61523323 is a wasteful number, since it uses less digits than its factorization.

61523323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619036.

The product of its digits is 3240, while the sum is 25.

The square root of 61523323 is about 7843.6804498909. The cubic root of 61523323 is about 394.7722299524.

Adding to 61523323 its reverse (32332516), we get a palindrome (93855839).

The spelling of 61523323 in words is "sixty-one million, five hundred twenty-three thousand, three hundred twenty-three".