56667454 has 4 divisors (see below), whose sum is σ = 85001184. Its totient is φ = 28333726.

The previous prime is 56667451. The next prime is 56667463. The reversal of 56667454 is 45476665.

It is a happy number.

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

It is a super-2 number, since 2×56667454² = 6422400685684232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56667454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56667451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14166862 + ... + 14166865.

It is an arithmetic number, because the mean of its divisors is an integer number (21250296).

Almost surely, 2^56667454 is an apocalyptic number.

56667454 is a deficient number, since it is larger than the sum of its proper divisors (28333730).

56667454 is a wasteful number, since it uses less digits than its factorization.

56667454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28333729.

The product of its digits is 604800, while the sum is 43.

The square root of 56667454 is about 7527.7788224682. The cubic root of 56667454 is about 384.1002297318.

It can be divided in two parts, 56667 and 454, that added together give a square (57121 = 239²).

The spelling of 56667454 in words is "fifty-six million, six hundred sixty-seven thousand, four hundred fifty-four".