61875413 has 2 divisors, whose sum is σ = 61875414. Its totient is φ = 61875412.

The previous prime is 61875397. The next prime is 61875439. The reversal of 61875413 is 31457816.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55026724 + 6848689 = 7418^2 + 2617^2 .

It is a cyclic number.

It is not a de Polignac number, because 61875413 - 2⁴ = 61875397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61875493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30937706 + 30937707.

It is an arithmetic number, because the mean of its divisors is an integer number (30937707).

Almost surely, 2^61875413 is an apocalyptic number.

It is an amenable number.

61875413 is a deficient number, since it is larger than the sum of its proper divisors (1).

61875413 is an equidigital number, since it uses as much as digits as its factorization.

61875413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 61875413 is about 7866.0926132356. The cubic root of 61875413 is about 395.5238746767.

The spelling of 61875413 in words is "sixty-one million, eight hundred seventy-five thousand, four hundred thirteen".