25742070 has 64 divisors (see below), whose sum is σ = 69719040. Its totient is φ = 6757344.

The previous prime is 25742039. The next prime is 25742081. The reversal of 25742070 is 7024752.

25742070 is a `hidden beast` number, since 2 + 574 + 20 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17379 + ... + 18801.

It is an arithmetic number, because the mean of its divisors is an integer number (1089360).

Almost surely, 2^25742070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25742070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34859520).

25742070 is an abundant number, since it is smaller than the sum of its proper divisors (43976970).

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

25742070 is a wasteful number, since it uses less digits than its factorization.

25742070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 25742070 is about 5073.6643562617. The cubic root of 25742070 is about 295.2667127299.

The spelling of 25742070 in words is "twenty-five million, seven hundred forty-two thousand, seventy".