53466378 has 64 divisors (see below), whose sum is σ = 127491840. Its totient is φ = 14630400.

The previous prime is 53466349. The next prime is 53466389. The reversal of 53466378 is 87366435.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104788 + ... + 105296.

It is an arithmetic number, because the mean of its divisors is an integer number (1992060).

Almost surely, 2^53466378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53466378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63745920).

53466378 is an abundant number, since it is smaller than the sum of its proper divisors (74025462).

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

53466378 is a wasteful number, since it uses less digits than its factorization.

53466378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623.

The product of its digits is 362880, while the sum is 42.

The square root of 53466378 is about 7312.0707053474. The cubic root of 53466378 is about 376.7271512062.

The spelling of 53466378 in words is "fifty-three million, four hundred sixty-six thousand, three hundred seventy-eight".