1544472225 has 24 divisors (see below), whose sum is σ = 2837253920. Its totient is φ = 823718160.

The previous prime is 1544472221. The next prime is 1544472239. The reversal of 1544472225 is 5222744451.

It is not a de Polignac number, because 1544472225 - 2² = 1544472221 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1544472225.

It is not an unprimeable number, because it can be changed into a prime (1544472221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1143379 + ... + 1144728.

Almost surely, 2^1544472225 is an apocalyptic number.

1544472225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1544472225 is a deficient number, since it is larger than the sum of its proper divisors (1292781695).

1544472225 is a wasteful number, since it uses less digits than its factorization.

1544472225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288126 (or 2288115 counting only the distinct ones).

The product of its digits is 89600, while the sum is 36.

The square root of 1544472225 is about 39299.7738543112. The cubic root of 1544472225 is about 1155.9171329132.

The spelling of 1544472225 in words is "one billion, five hundred forty-four million, four hundred seventy-two thousand, two hundred twenty-five".