26542361025 has 36 divisors (see below), whose sum is σ = 47556426060. Its totient is φ = 14151129600.

The previous prime is 26542361023. The next prime is 26542361029. The reversal of 26542361025 is 52016324562.

26542361025 is a `hidden beast` number, since 2 + 6 + 542 + 3 + 6 + 102 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 5434048656 + 21108312369 = 73716^2 + 145287^2 .

It is not a de Polignac number, because 26542361025 - 2¹ = 26542361023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26542361023) 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, 703645 + ... + 740405.

It is an arithmetic number, because the mean of its divisors is an integer number (1321011835).

Almost surely, 2^26542361025 is an apocalyptic number.

26542361025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26542361025 is a deficient number, since it is larger than the sum of its proper divisors (21014065035).

26542361025 is a wasteful number, since it uses less digits than its factorization.

26542361025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39986 (or 39978 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 26542361025 its reverse (52016324562), we get a palindrome (78558685587).

The spelling of 26542361025 in words is "twenty-six billion, five hundred forty-two million, three hundred sixty-one thousand, twenty-five".