57378307 has 8 divisors (see below), whose sum is σ = 68426496. Its totient is φ = 47042952.

The previous prime is 57378287. The next prime is 57378317. The reversal of 57378307 is 70387375.

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 57378307 - 2¹¹ = 57376259 is a prime.

It is a super-2 number, since 2×57378307² = 6584540228372498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57378307.

It is not an unprimeable number, because it can be changed into a prime (57378317) 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, 178033 + ... + 178354.

It is an arithmetic number, because the mean of its divisors is an integer number (8553312).

Almost surely, 2^57378307 is an apocalyptic number.

57378307 is a deficient number, since it is larger than the sum of its proper divisors (11048189).

57378307 is a wasteful number, since it uses less digits than its factorization.

57378307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356417.

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 57378307 is about 7574.8469951544. The cubic root of 57378307 is about 385.6996486770.

The spelling of 57378307 in words is "fifty-seven million, three hundred seventy-eight thousand, three hundred seven".