56523430 has 16 divisors (see below), whose sum is σ = 101878560. Its totient is φ = 22579072.

The previous prime is 56523427. The next prime is 56523451. The reversal of 56523430 is 3432565.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5022 + ... + 11758.

It is an arithmetic number, because the mean of its divisors is an integer number (6367410).

Almost surely, 2^56523430 is an apocalyptic number.

56523430 is a deficient number, since it is larger than the sum of its proper divisors (45355130).

56523430 is a wasteful number, since it uses less digits than its factorization.

56523430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7583.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 56523430 is about 7518.2065680586. The cubic root of 56523430 is about 383.7745484690.

Adding to 56523430 its reverse (3432565), we get a palindrome (59955995).

It can be divided in two parts, 56523 and 430, that added together give a triangular number (56953 = T₃₃₇).

The spelling of 56523430 in words is "fifty-six million, five hundred twenty-three thousand, four hundred thirty".