1425692720533 has 4 divisors (see below), whose sum is σ = 1425705174720. Its totient is φ = 1425680266348.

The previous prime is 1425692720527. The next prime is 1425692720549. The reversal of 1425692720533 is 3350272965241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425692720533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425692720233) 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, 6053773 + ... + 6284866.

It is an arithmetic number, because the mean of its divisors is an integer number (356426293680).

Almost surely, 2^{1425692720533} is an apocalyptic number.

It is an amenable number.

1425692720533 is a deficient number, since it is larger than the sum of its proper divisors (12454187).

1425692720533 is a wasteful number, since it uses less digits than its factorization.

1425692720533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12454186.

The product of its (nonzero) digits is 2721600, while the sum is 49.

It can be divided in two parts, 1425692 and 720533, that added together give a square (2146225 = 1465²).

The spelling of 1425692720533 in words is "one trillion, four hundred twenty-five billion, six hundred ninety-two million, seven hundred twenty thousand, five hundred thirty-three".