1250221552545 has 64 divisors (see below), whose sum is σ = 2312070114816. Its totient is φ = 565054341120.

The previous prime is 1250221552523. The next prime is 1250221552571. The reversal of 1250221552545 is 5452551220521.

It is not a de Polignac number, because 1250221552545 - 2¹² = 1250221548449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9887925 + ... + 10013565.

It is an arithmetic number, because the mean of its divisors is an integer number (36126095544).

Almost surely, 2^{1250221552545} is an apocalyptic number.

1250221552545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1250221552545 is a deficient number, since it is larger than the sum of its proper divisors (1061848562271).

1250221552545 is a wasteful number, since it uses less digits than its factorization.

1250221552545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126730.

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 1250221552545 in words is "one trillion, two hundred fifty billion, two hundred twenty-one million, five hundred fifty-two thousand, five hundred forty-five".