125648205454 has 4 divisors (see below), whose sum is σ = 188472308184. Its totient is φ = 62824102726.

The previous prime is 125648205439. The next prime is 125648205461. The reversal of 125648205454 is 454502846521.

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

It is a super-2 number, since 2×125648205454² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31412051362 + ... + 31412051365.

It is an arithmetic number, because the mean of its divisors is an integer number (47118077046).

Almost surely, 2^125648205454 is an apocalyptic number.

125648205454 is a deficient number, since it is larger than the sum of its proper divisors (62824102730).

125648205454 is an equidigital number, since it uses as much as digits as its factorization.

125648205454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62824102729.

The product of its (nonzero) digits is 1536000, while the sum is 46.

The spelling of 125648205454 in words is "one hundred twenty-five billion, six hundred forty-eight million, two hundred five thousand, four hundred fifty-four".