425207642554 has 4 divisors (see below), whose sum is σ = 637811463834. Its totient is φ = 212603821276.

The previous prime is 425207642549. The next prime is 425207642569. The reversal of 425207642554 is 455246702524.

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

It can be written as a sum of positive squares in only one way, i.e., 417991989529 + 7215653025 = 646523^2 + 84945^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106301910637 + ... + 106301910640.

Almost surely, 2^425207642554 is an apocalyptic number.

425207642554 is a deficient number, since it is larger than the sum of its proper divisors (212603821280).

425207642554 is a wasteful number, since it uses less digits than its factorization.

425207642554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212603821279.

The product of its (nonzero) digits is 2688000, while the sum is 46.

The spelling of 425207642554 in words is "four hundred twenty-five billion, two hundred seven million, six hundred forty-two thousand, five hundred fifty-four".