1225505454 has 64 divisors (see below), whose sum is σ = 2577899520. Its totient is φ = 387934560.

The previous prime is 1225505447. The next prime is 1225505467. The reversal of 1225505454 is 4545055221.

It is a super-2 number, since 2×1225505454² = 3003727235567492232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2766157 + ... + 2766599.

It is an arithmetic number, because the mean of its divisors is an integer number (40279680).

Almost surely, 2^1225505454 is an apocalyptic number.

1225505454 is an abundant number, since it is smaller than the sum of its proper divisors (1352394066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225505454 is a wasteful number, since it uses less digits than its factorization.

1225505454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 1225505454 is about 35007.2200267316. The cubic root of 1225505454 is about 1070.1346248057.

The spelling of 1225505454 in words is "one billion, two hundred twenty-five million, five hundred five thousand, four hundred fifty-four".