56125019 has 4 divisors (see below), whose sum is σ = 57430296. Its totient is φ = 54819744.

The previous prime is 56124977. The next prime is 56125033. The reversal of 56125019 is 91052165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91052165 = 5 ⋅18210433.

It is a cyclic number.

It is not a de Polignac number, because 56125019 - 2⁸ = 56124763 is a prime.

It is a super-2 number, since 2×56125019² = 6300035515500722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56124982 and 56125000.

It is not an unprimeable number, because it can be changed into a prime (56125049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652574 + ... + 652659.

It is an arithmetic number, because the mean of its divisors is an integer number (14357574).

Almost surely, 2^56125019 is an apocalyptic number.

56125019 is a deficient number, since it is larger than the sum of its proper divisors (1305277).

56125019 is a wasteful number, since it uses less digits than its factorization.

56125019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305276.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 56125019 is about 7491.6632999622. The cubic root of 56125019 is about 382.8707305972.

The spelling of 56125019 in words is "fifty-six million, one hundred twenty-five thousand, nineteen".