61253535 has 16 divisors (see below), whose sum is σ = 112006656. Its totient is φ = 28001568.

The previous prime is 61253513. The next prime is 61253557. The reversal of 61253535 is 53535216.

It is an interprime number because it is at equal distance from previous prime (61253513) and next prime (61253557).

It is not a de Polignac number, because 61253535 - 2⁵ = 61253503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291579 + ... + 291788.

It is an arithmetic number, because the mean of its divisors is an integer number (7000416).

Almost surely, 2^61253535 is an apocalyptic number.

61253535 is a deficient number, since it is larger than the sum of its proper divisors (50753121).

61253535 is a wasteful number, since it uses less digits than its factorization.

61253535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583382.

The product of its digits is 13500, while the sum is 30.

The square root of 61253535 is about 7826.4637608565. The cubic root of 61253535 is about 394.1943414118.

The spelling of 61253535 in words is "sixty-one million, two hundred fifty-three thousand, five hundred thirty-five".