47540025 has 36 divisors (see below), whose sum is σ = 91705068. Its totient is φ = 23402880.

The previous prime is 47540021. The next prime is 47540027. The reversal of 47540025 is 52004574.

It can be written as a sum of positive squares in 6 ways, for example, as 2663424 + 44876601 = 1632^2 + 6699^2 .

It is not a de Polignac number, because 47540025 - 2² = 47540021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47540021) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5202 + ... + 11051.

It is an arithmetic number, because the mean of its divisors is an integer number (2547363).

Almost surely, 2^47540025 is an apocalyptic number.

47540025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47540025 is a deficient number, since it is larger than the sum of its proper divisors (44165043).

47540025 is a wasteful number, since it uses less digits than its factorization.

47540025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16282 (or 16274 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 47540025 is about 6894.9274833025. The cubic root of 47540025 is about 362.2595154866.

Adding to 47540025 its reverse (52004574), we get a palindrome (99544599).

The spelling of 47540025 in words is "forty-seven million, five hundred forty thousand, twenty-five".