75678253 has 4 divisors (see below), whose sum is σ = 86489440. Its totient is φ = 64867068.

The previous prime is 75678241. The next prime is 75678269. The reversal of 75678253 is 35287657.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-75678253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75678233) 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, 5405583 + ... + 5405596.

It is an arithmetic number, because the mean of its divisors is an integer number (21622360).

Almost surely, 2^75678253 is an apocalyptic number.

It is an amenable number.

75678253 is a deficient number, since it is larger than the sum of its proper divisors (10811187).

75678253 is a wasteful number, since it uses less digits than its factorization.

75678253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10811186.

The product of its digits is 352800, while the sum is 43.

The square root of 75678253 is about 8699.3248588612. The cubic root of 75678253 is about 422.9837657498.

It can be divided in two parts, 756782 and 53, that multiplied together give a triangular number (40109446 = T₈₉₅₆).

The spelling of 75678253 in words is "seventy-five million, six hundred seventy-eight thousand, two hundred fifty-three".