78203052 has 36 divisors (see below), whose sum is σ = 203026096. Its totient is φ = 25362720.

The previous prime is 78203033. The next prime is 78203071. The reversal of 78203052 is 25030287.

It is an interprime number because it is at equal distance from previous prime (78203033) and next prime (78203071).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×78203052² = 12231434684229408, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28024 + ... + 30687.

Almost surely, 2^78203052 is an apocalyptic number.

It is an amenable number.

78203052 is an abundant number, since it is smaller than the sum of its proper divisors (124823044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78203052 is a wasteful number, since it uses less digits than its factorization.

78203052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58758 (or 58753 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 78203052 is about 8843.2489504706. The cubic root of 78203052 is about 427.6363041303.

The spelling of 78203052 in words is "seventy-eight million, two hundred three thousand, fifty-two".