52345478 has 4 divisors (see below), whose sum is σ = 78518220. Its totient is φ = 26172738.

The previous prime is 52345477. The next prime is 52345481. The reversal of 52345478 is 87454325.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52345477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13086368 + ... + 13086371.

It is an arithmetic number, because the mean of its divisors is an integer number (19629555).

Almost surely, 2^52345478 is an apocalyptic number.

52345478 is a deficient number, since it is larger than the sum of its proper divisors (26172742).

52345478 is a wasteful number, since it uses less digits than its factorization.

52345478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26172741.

The product of its digits is 134400, while the sum is 38.

The square root of 52345478 is about 7235.0174844295. The cubic root of 52345478 is about 374.0758946897.

The spelling of 52345478 in words is "fifty-two million, three hundred forty-five thousand, four hundred seventy-eight".