78169053 has 8 divisors (see below), whose sum is σ = 104766208. Its totient is φ = 51842304.

The previous prime is 78169031. The next prime is 78169061. The reversal of 78169053 is 35096187.

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

It is not a de Polignac number, because 78169053 - 2⁶ = 78168989 is a prime.

It is a super-2 number, since 2×78169053² = 12220801693833618, 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 (78169093) 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, 66925 + ... + 68082.

It is an arithmetic number, because the mean of its divisors is an integer number (13095776).

Almost surely, 2^78169053 is an apocalyptic number.

It is an amenable number.

78169053 is a deficient number, since it is larger than the sum of its proper divisors (26597155).

78169053 is a wasteful number, since it uses less digits than its factorization.

78169053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135203.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 78169053 is about 8841.3264276352. The cubic root of 78169053 is about 427.5743231128.

The spelling of 78169053 in words is "seventy-eight million, one hundred sixty-nine thousand, fifty-three".