56151403 has 24 divisors (see below), whose sum is σ = 75021120. Its totient is φ = 41443920.

The previous prime is 56151397. The next prime is 56151419. The reversal of 56151403 is 30415165.

It is not a de Polignac number, because 56151403 - 2⁵ = 56151371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56151103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7500 + ... + 12982.

It is an arithmetic number, because the mean of its divisors is an integer number (3125880).

Almost surely, 2^56151403 is an apocalyptic number.

56151403 is a deficient number, since it is larger than the sum of its proper divisors (18869717).

56151403 is a wasteful number, since it uses less digits than its factorization.

56151403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527 (or 5520 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 56151403 is about 7493.4239837340. The cubic root of 56151403 is about 382.9307161974.

Adding to 56151403 its reverse (30415165), we get a palindrome (86566568).

The spelling of 56151403 in words is "fifty-six million, one hundred fifty-one thousand, four hundred three".