78275053 has 8 divisors (see below), whose sum is σ = 79981568. Its totient is φ = 76585824.

The previous prime is 78275051. The next prime is 78275063. The reversal of 78275053 is 35057287.

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

It is a cyclic number.

It is not a de Polignac number, because 78275053 - 2¹ = 78275051 is a prime.

It is a super-2 number, since 2×78275053² = 12253967844305618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78275051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5050 + ... + 13492.

It is an arithmetic number, because the mean of its divisors is an integer number (9997696).

Almost surely, 2^78275053 is an apocalyptic number.

78275053 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

78275053 is a deficient number, since it is larger than the sum of its proper divisors (1706515).

78275053 is a wasteful number, since it uses less digits than its factorization.

78275053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8643.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 78275053 is about 8847.3189724345. The cubic root of 78275053 is about 427.7675044527.

It can be divided in two parts, 7827 and 5053, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 78275053 in words is "seventy-eight million, two hundred seventy-five thousand, fifty-three".